diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e888a5d6..37b2ca2ec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -433,6 +433,7 @@ set(TDLIB_SOURCE
   td/telegram/PhoneNumberManager.cpp
   td/telegram/PrivacyManager.cpp
   td/telegram/Photo.cpp
+  td/telegram/PhotoSizeSource.cpp
   td/telegram/PollManager.cpp
   td/telegram/QueryCombiner.cpp
   td/telegram/ReplyMarkup.cpp
@@ -591,6 +592,7 @@ set(TDLIB_SOURCE
   td/telegram/Payments.h
   td/telegram/PhoneNumberManager.h
   td/telegram/Photo.h
+  td/telegram/PhotoSizeSource.h
   td/telegram/PollId.h
   td/telegram/PollManager.h
   td/telegram/PrivacyManager.h
@@ -647,6 +649,7 @@ set(TDLIB_SOURCE
   td/telegram/NotificationSettings.hpp
   td/telegram/Payments.hpp
   td/telegram/Photo.hpp
+  td/telegram/PhotoSizeSource.hpp
   td/telegram/PollId.hpp
   td/telegram/PollManager.hpp
   td/telegram/ReplyMarkup.hpp
diff --git a/td/telegram/Photo.cpp b/td/telegram/Photo.cpp
index b3e9beebf..63c71b1fb 100644
--- a/td/telegram/Photo.cpp
+++ b/td/telegram/Photo.cpp
@@ -9,13 +9,10 @@
 #include "td/telegram/secret_api.h"
 #include "td/telegram/telegram_api.h"
 
-#include "td/telegram/ChannelId.h"
-#include "td/telegram/ChatId.h"
 #include "td/telegram/files/FileEncryptionKey.h"
 #include "td/telegram/files/FileLocation.h"
 #include "td/telegram/files/FileManager.h"
 #include "td/telegram/net/DcId.h"
-#include "td/telegram/UserId.h"
 
 #include "td/utils/base64.h"
 #include "td/utils/common.h"
@@ -30,70 +27,6 @@
 
 namespace td {
 
-tl_object_ptr<telegram_api::InputPeer> PhotoSizeSource::DialogPhoto::get_input_peer() const {
-  switch (dialog_id.get_type()) {
-    case DialogType::User: {
-      UserId user_id = dialog_id.get_user_id();
-      return make_tl_object<telegram_api::inputPeerUser>(user_id.get(), dialog_access_hash);
-    }
-    case DialogType::Chat: {
-      ChatId chat_id = dialog_id.get_chat_id();
-      return make_tl_object<telegram_api::inputPeerChat>(chat_id.get());
-    }
-    case DialogType::Channel: {
-      ChannelId channel_id = dialog_id.get_channel_id();
-      return make_tl_object<telegram_api::inputPeerChannel>(channel_id.get(), dialog_access_hash);
-    }
-    case DialogType::SecretChat:
-      return nullptr;
-    case DialogType::None:
-      return make_tl_object<telegram_api::inputPeerEmpty>();
-    default:
-      UNREACHABLE();
-      return nullptr;
-  }
-}
-
-FileType get_photo_size_source_file_type(const PhotoSizeSource &source) {
-  switch (source.get_type()) {
-    case PhotoSizeSource::Type::Thumbnail:
-      return source.thumbnail().file_type;
-    case PhotoSizeSource::Type::DialogPhoto:
-      return FileType::ProfilePhoto;
-    case PhotoSizeSource::Type::StickerSetThumbnail:
-      return FileType::Thumbnail;
-    case PhotoSizeSource::Type::Empty:
-    default:
-      UNREACHABLE();
-      return FileType::Thumbnail;
-  }
-}
-
-bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
-  if (lhs.get_type() != rhs.get_type()) {
-    return false;
-  }
-  switch (lhs.get_type()) {
-    case PhotoSizeSource::Type::Thumbnail:
-      return lhs.thumbnail().file_type == rhs.thumbnail().file_type &&
-             lhs.thumbnail().thumbnail_type == rhs.thumbnail().thumbnail_type;
-    case PhotoSizeSource::Type::DialogPhoto:
-      return lhs.dialog_photo().dialog_id == rhs.dialog_photo().dialog_id &&
-             lhs.dialog_photo().dialog_access_hash == rhs.dialog_photo().dialog_access_hash &&
-             lhs.dialog_photo().is_big == rhs.dialog_photo().is_big;
-    case PhotoSizeSource::Type::StickerSetThumbnail:
-      return lhs.sticker_set_thumbnail().sticker_set_id == rhs.sticker_set_thumbnail().sticker_set_id &&
-             lhs.sticker_set_thumbnail().sticker_set_access_hash == rhs.sticker_set_thumbnail().sticker_set_access_hash;
-    case PhotoSizeSource::Type::Empty:
-    default:
-      return true;
-  }
-}
-
-bool operator!=(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
-  return !(lhs == rhs);
-}
-
 static uint16 get_dimension(int32 size) {
   if (size < 0 || size > 65535) {
     LOG(ERROR) << "Wrong image dimension = " << size;
@@ -170,8 +103,8 @@ static FileId register_photo(FileManager *file_manager, const PhotoSizeSource &s
   int32 local_id = location->local_id_;
   int64 volume_id = location->volume_id_;
   LOG(DEBUG) << "Receive " << (is_webp ? "webp" : (is_png ? "png" : "jpeg")) << " photo of type "
-             << get_photo_size_source_file_type(source) << " in [" << dc_id << "," << volume_id << "," << local_id
-             << "]. Id: (" << id << ", " << access_hash << ")";
+             << source.get_file_type() << " in [" << dc_id << "," << volume_id << "," << local_id << "]. Id: (" << id
+             << ", " << access_hash << ")";
   auto suggested_name = PSTRING() << static_cast<uint64>(volume_id) << "_" << static_cast<uint64>(local_id)
                                   << (is_webp ? ".webp" : (is_png ? ".png" : ".jpg"));
   auto file_location_source = owner_dialog_id.get_type() == DialogType::SecretChat ? FileLocationSource::FromUser
diff --git a/td/telegram/Photo.h b/td/telegram/Photo.h
index f3448815f..a0142b98b 100644
--- a/td/telegram/Photo.h
+++ b/td/telegram/Photo.h
@@ -10,6 +10,7 @@
 #include "td/telegram/files/FileId.h"
 #include "td/telegram/files/FileType.h"
 #include "td/telegram/net/DcId.h"
+#include "td/telegram/PhotoSizeSource.h"
 #include "td/telegram/SecretInputMedia.h"
 #include "td/telegram/UserId.h"
 
@@ -20,7 +21,6 @@
 #include "td/utils/buffer.h"
 #include "td/utils/common.h"
 #include "td/utils/StringBuilder.h"
-#include "td/utils/Variant.h"
 
 namespace td {
 
@@ -47,99 +47,6 @@ struct PhotoSize {
   FileId file_id;
 };
 
-struct PhotoSizeSource {
-  enum class Type : int32 { Empty, Thumbnail, DialogPhoto, StickerSetThumbnail };
-
-  // for photos, document thumbnails, encrypted thumbnails
-  struct Thumbnail {
-    Thumbnail() = default;
-    Thumbnail(FileType file_type, int32 thumbnail_type) : file_type(file_type), thumbnail_type(thumbnail_type) {
-    }
-
-    FileType file_type;
-    int32 thumbnail_type = 0;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  // for dialog photos
-  struct DialogPhoto {
-    DialogPhoto() = default;
-    DialogPhoto(DialogId dialog_id, int64 dialog_access_hash, bool is_big)
-        : dialog_id(dialog_id), dialog_access_hash(dialog_access_hash), is_big(is_big) {
-    }
-
-    tl_object_ptr<telegram_api::InputPeer> get_input_peer() const;
-
-    DialogId dialog_id;
-    int64 dialog_access_hash = 0;
-    bool is_big = false;
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  // for sticker set thumbnails
-  struct StickerSetThumbnail {
-    int64 sticker_set_id = 0;
-    int64 sticker_set_access_hash = 0;
-
-    StickerSetThumbnail() = default;
-    StickerSetThumbnail(int64 sticker_set_id, int64 sticker_set_access_hash)
-        : sticker_set_id(sticker_set_id), sticker_set_access_hash(sticker_set_access_hash) {
-    }
-
-    tl_object_ptr<telegram_api::InputStickerSet> get_input_sticker_set() const {
-      return make_tl_object<telegram_api::inputStickerSetID>(sticker_set_id, sticker_set_access_hash);
-    }
-
-    template <class StorerT>
-    void store(StorerT &storer) const;
-    template <class ParserT>
-    void parse(ParserT &parser);
-  };
-
-  PhotoSizeSource() = default;
-  PhotoSizeSource(FileType file_type, int32 thumbnail_type) : variant(Thumbnail(file_type, thumbnail_type)) {
-  }
-  PhotoSizeSource(DialogId dialog_id, int64 dialog_access_hash, bool is_big)
-      : variant(DialogPhoto(dialog_id, dialog_access_hash, is_big)) {
-  }
-  PhotoSizeSource(int64 sticker_set_id, int64 sticker_set_access_hash)
-      : variant(StickerSetThumbnail(sticker_set_id, sticker_set_access_hash)) {
-  }
-
-  Type get_type() const {
-    return static_cast<Type>(variant.get_offset() + 1);
-  }
-
-  Thumbnail &thumbnail() {
-    return variant.get<Thumbnail>();
-  }
-  const Thumbnail &thumbnail() const {
-    return variant.get<Thumbnail>();
-  }
-  const DialogPhoto &dialog_photo() const {
-    return variant.get<DialogPhoto>();
-  }
-  const StickerSetThumbnail &sticker_set_thumbnail() const {
-    return variant.get<StickerSetThumbnail>();
-  }
-
-  template <class StorerT>
-  void store(StorerT &storer) const;
-  template <class ParserT>
-  void parse(ParserT &parser);
-
- private:
-  Variant<Thumbnail, DialogPhoto, StickerSetThumbnail> variant;
-};
-
 struct Photo {
   int64 id = 0;
   int32 date = 0;
@@ -150,11 +57,6 @@ struct Photo {
   vector<FileId> sticker_file_ids;
 };
 
-FileType get_photo_size_source_file_type(const PhotoSizeSource &source);
-
-bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
-bool operator!=(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
-
 Dimensions get_dimensions(int32 width, int32 height);
 
 bool operator==(const Dimensions &lhs, const Dimensions &rhs);
diff --git a/td/telegram/Photo.hpp b/td/telegram/Photo.hpp
index 0502f37c9..0c683c9cd 100644
--- a/td/telegram/Photo.hpp
+++ b/td/telegram/Photo.hpp
@@ -15,72 +15,6 @@
 
 namespace td {
 
-template <class StorerT>
-void PhotoSizeSource::Thumbnail::store(StorerT &storer) const {
-  using td::store;
-  store(file_type, storer);
-  store(thumbnail_type, storer);
-}
-
-template <class ParserT>
-void PhotoSizeSource::Thumbnail::parse(ParserT &parser) {
-  using td::parse;
-  parse(file_type, parser);
-  parse(thumbnail_type, parser);
-  if (thumbnail_type < 0 || thumbnail_type > 255) {
-    parser.set_error("Wrong thumbnail type");
-  }
-}
-
-template <class StorerT>
-void PhotoSizeSource::StickerSetThumbnail::store(StorerT &storer) const {
-  using td::store;
-  store(sticker_set_id, storer);
-  store(sticker_set_access_hash, storer);
-}
-
-template <class ParserT>
-void PhotoSizeSource::StickerSetThumbnail::parse(ParserT &parser) {
-  using td::parse;
-  parse(sticker_set_id, parser);
-  parse(sticker_set_access_hash, parser);
-}
-
-template <class StorerT>
-void PhotoSizeSource::DialogPhoto::store(StorerT &storer) const {
-  using td::store;
-  store(dialog_id, storer);
-  store(dialog_access_hash, storer);
-  store(is_big, storer);
-}
-
-template <class ParserT>
-void PhotoSizeSource::DialogPhoto::parse(ParserT &parser) {
-  using td::parse;
-  parse(dialog_id, parser);
-  parse(dialog_access_hash, parser);
-  parse(is_big, parser);
-
-  switch (dialog_id.get_type()) {
-    case DialogType::SecretChat:
-    case DialogType::None:
-      parser.set_error("Invalid chat id");
-      break;
-    default:
-      break;
-  }
-}
-
-template <class StorerT>
-void PhotoSizeSource::store(StorerT &storer) const {
-  td::store(variant, storer);
-}
-
-template <class ParserT>
-void PhotoSizeSource::parse(ParserT &parser) {
-  td::parse(variant, parser);
-}
-
 template <class StorerT>
 void store(Dimensions dimensions, StorerT &storer) {
   store(static_cast<uint32>((static_cast<uint32>(dimensions.width) << 16) | dimensions.height), storer);
diff --git a/td/telegram/PhotoSizeSource.cpp b/td/telegram/PhotoSizeSource.cpp
new file mode 100644
index 000000000..3ff245dee
--- /dev/null
+++ b/td/telegram/PhotoSizeSource.cpp
@@ -0,0 +1,81 @@
+//
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+#include "td/telegram/PhotoSizeSource.h"
+
+#include "td/telegram/ChannelId.h"
+#include "td/telegram/ChatId.h"
+#include "td/telegram/UserId.h"
+
+#include "td/utils/common.h"
+
+namespace td {
+
+tl_object_ptr<telegram_api::InputPeer> PhotoSizeSource::DialogPhoto::get_input_peer() const {
+  switch (dialog_id.get_type()) {
+    case DialogType::User: {
+      UserId user_id = dialog_id.get_user_id();
+      return make_tl_object<telegram_api::inputPeerUser>(user_id.get(), dialog_access_hash);
+    }
+    case DialogType::Chat: {
+      ChatId chat_id = dialog_id.get_chat_id();
+      return make_tl_object<telegram_api::inputPeerChat>(chat_id.get());
+    }
+    case DialogType::Channel: {
+      ChannelId channel_id = dialog_id.get_channel_id();
+      return make_tl_object<telegram_api::inputPeerChannel>(channel_id.get(), dialog_access_hash);
+    }
+    case DialogType::SecretChat:
+      return nullptr;
+    case DialogType::None:
+      return make_tl_object<telegram_api::inputPeerEmpty>();
+    default:
+      UNREACHABLE();
+      return nullptr;
+  }
+}
+
+FileType PhotoSizeSource::get_file_type() const {
+  switch (get_type()) {
+    case PhotoSizeSource::Type::Thumbnail:
+      return thumbnail().file_type;
+    case PhotoSizeSource::Type::DialogPhoto:
+      return FileType::ProfilePhoto;
+    case PhotoSizeSource::Type::StickerSetThumbnail:
+      return FileType::Thumbnail;
+    case PhotoSizeSource::Type::Empty:
+    default:
+      UNREACHABLE();
+      return FileType::Thumbnail;
+  }
+}
+
+bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
+  if (lhs.get_type() != rhs.get_type()) {
+    return false;
+  }
+  switch (lhs.get_type()) {
+    case PhotoSizeSource::Type::Thumbnail:
+      return lhs.thumbnail().file_type == rhs.thumbnail().file_type &&
+             lhs.thumbnail().thumbnail_type == rhs.thumbnail().thumbnail_type;
+    case PhotoSizeSource::Type::DialogPhoto:
+      return lhs.dialog_photo().dialog_id == rhs.dialog_photo().dialog_id &&
+             lhs.dialog_photo().dialog_access_hash == rhs.dialog_photo().dialog_access_hash &&
+             lhs.dialog_photo().is_big == rhs.dialog_photo().is_big;
+    case PhotoSizeSource::Type::StickerSetThumbnail:
+      return lhs.sticker_set_thumbnail().sticker_set_id == rhs.sticker_set_thumbnail().sticker_set_id &&
+             lhs.sticker_set_thumbnail().sticker_set_access_hash == rhs.sticker_set_thumbnail().sticker_set_access_hash;
+    case PhotoSizeSource::Type::Empty:
+    default:
+      return true;
+  }
+}
+
+bool operator!=(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs) {
+  return !(lhs == rhs);
+}
+
+}  // namespace td
diff --git a/td/telegram/PhotoSizeSource.h b/td/telegram/PhotoSizeSource.h
new file mode 100644
index 000000000..7dccb81ff
--- /dev/null
+++ b/td/telegram/PhotoSizeSource.h
@@ -0,0 +1,117 @@
+//
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+#pragma once
+
+#include "td/telegram/DialogId.h"
+#include "td/telegram/files/FileType.h"
+
+#include "td/telegram/telegram_api.h"
+
+#include "td/utils/common.h"
+#include "td/utils/Variant.h"
+
+namespace td {
+
+struct PhotoSizeSource {
+  enum class Type : int32 { Empty, Thumbnail, DialogPhoto, StickerSetThumbnail };
+
+  // for photos, document thumbnails, encrypted thumbnails
+  struct Thumbnail {
+    Thumbnail() = default;
+    Thumbnail(FileType file_type, int32 thumbnail_type) : file_type(file_type), thumbnail_type(thumbnail_type) {
+    }
+
+    FileType file_type;
+    int32 thumbnail_type = 0;
+
+    template <class StorerT>
+    void store(StorerT &storer) const;
+    template <class ParserT>
+    void parse(ParserT &parser);
+  };
+
+  // for dialog photos
+  struct DialogPhoto {
+    DialogPhoto() = default;
+    DialogPhoto(DialogId dialog_id, int64 dialog_access_hash, bool is_big)
+        : dialog_id(dialog_id), dialog_access_hash(dialog_access_hash), is_big(is_big) {
+    }
+
+    tl_object_ptr<telegram_api::InputPeer> get_input_peer() const;
+
+    DialogId dialog_id;
+    int64 dialog_access_hash = 0;
+    bool is_big = false;
+
+    template <class StorerT>
+    void store(StorerT &storer) const;
+    template <class ParserT>
+    void parse(ParserT &parser);
+  };
+
+  // for sticker set thumbnails
+  struct StickerSetThumbnail {
+    int64 sticker_set_id = 0;
+    int64 sticker_set_access_hash = 0;
+
+    StickerSetThumbnail() = default;
+    StickerSetThumbnail(int64 sticker_set_id, int64 sticker_set_access_hash)
+        : sticker_set_id(sticker_set_id), sticker_set_access_hash(sticker_set_access_hash) {
+    }
+
+    tl_object_ptr<telegram_api::InputStickerSet> get_input_sticker_set() const {
+      return make_tl_object<telegram_api::inputStickerSetID>(sticker_set_id, sticker_set_access_hash);
+    }
+
+    template <class StorerT>
+    void store(StorerT &storer) const;
+    template <class ParserT>
+    void parse(ParserT &parser);
+  };
+
+  PhotoSizeSource() = default;
+  PhotoSizeSource(FileType file_type, int32 thumbnail_type) : variant(Thumbnail(file_type, thumbnail_type)) {
+  }
+  PhotoSizeSource(DialogId dialog_id, int64 dialog_access_hash, bool is_big)
+      : variant(DialogPhoto(dialog_id, dialog_access_hash, is_big)) {
+  }
+  PhotoSizeSource(int64 sticker_set_id, int64 sticker_set_access_hash)
+      : variant(StickerSetThumbnail(sticker_set_id, sticker_set_access_hash)) {
+  }
+
+  Type get_type() const {
+    return static_cast<Type>(variant.get_offset() + 1);
+  }
+
+  FileType get_file_type() const;
+
+  Thumbnail &thumbnail() {
+    return variant.get<Thumbnail>();
+  }
+  const Thumbnail &thumbnail() const {
+    return variant.get<Thumbnail>();
+  }
+  const DialogPhoto &dialog_photo() const {
+    return variant.get<DialogPhoto>();
+  }
+  const StickerSetThumbnail &sticker_set_thumbnail() const {
+    return variant.get<StickerSetThumbnail>();
+  }
+
+  template <class StorerT>
+  void store(StorerT &storer) const;
+  template <class ParserT>
+  void parse(ParserT &parser);
+
+ private:
+  Variant<Thumbnail, DialogPhoto, StickerSetThumbnail> variant;
+};
+
+bool operator==(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
+bool operator!=(const PhotoSizeSource &lhs, const PhotoSizeSource &rhs);
+
+}  // namespace td
diff --git a/td/telegram/PhotoSizeSource.hpp b/td/telegram/PhotoSizeSource.hpp
new file mode 100644
index 000000000..394efdef9
--- /dev/null
+++ b/td/telegram/PhotoSizeSource.hpp
@@ -0,0 +1,81 @@
+//
+// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+#pragma once
+
+#include "td/telegram/Photo.h"
+
+#include "td/utils/tl_helpers.h"
+
+namespace td {
+
+template <class StorerT>
+void PhotoSizeSource::Thumbnail::store(StorerT &storer) const {
+  using td::store;
+  store(file_type, storer);
+  store(thumbnail_type, storer);
+}
+
+template <class ParserT>
+void PhotoSizeSource::Thumbnail::parse(ParserT &parser) {
+  using td::parse;
+  parse(file_type, parser);
+  parse(thumbnail_type, parser);
+  if (thumbnail_type < 0 || thumbnail_type > 255) {
+    parser.set_error("Wrong thumbnail type");
+  }
+}
+
+template <class StorerT>
+void PhotoSizeSource::StickerSetThumbnail::store(StorerT &storer) const {
+  using td::store;
+  store(sticker_set_id, storer);
+  store(sticker_set_access_hash, storer);
+}
+
+template <class ParserT>
+void PhotoSizeSource::StickerSetThumbnail::parse(ParserT &parser) {
+  using td::parse;
+  parse(sticker_set_id, parser);
+  parse(sticker_set_access_hash, parser);
+}
+
+template <class StorerT>
+void PhotoSizeSource::DialogPhoto::store(StorerT &storer) const {
+  using td::store;
+  store(dialog_id, storer);
+  store(dialog_access_hash, storer);
+  store(is_big, storer);
+}
+
+template <class ParserT>
+void PhotoSizeSource::DialogPhoto::parse(ParserT &parser) {
+  using td::parse;
+  parse(dialog_id, parser);
+  parse(dialog_access_hash, parser);
+  parse(is_big, parser);
+
+  switch (dialog_id.get_type()) {
+    case DialogType::SecretChat:
+    case DialogType::None:
+      parser.set_error("Invalid chat id");
+      break;
+    default:
+      break;
+  }
+}
+
+template <class StorerT>
+void PhotoSizeSource::store(StorerT &storer) const {
+  td::store(variant, storer);
+}
+
+template <class ParserT>
+void PhotoSizeSource::parse(ParserT &parser) {
+  td::parse(variant, parser);
+}
+
+}  // namespace td
diff --git a/td/telegram/files/FileLocation.h b/td/telegram/files/FileLocation.h
index c68dbf4d2..af3129599 100644
--- a/td/telegram/files/FileLocation.h
+++ b/td/telegram/files/FileLocation.h
@@ -11,7 +11,7 @@
 #include "td/telegram/files/FileBitmask.h"
 #include "td/telegram/files/FileType.h"
 #include "td/telegram/net/DcId.h"
-#include "td/telegram/Photo.h"
+#include "td/telegram/PhotoSizeSource.h"
 
 #include "td/utils/base64.h"
 #include "td/utils/buffer.h"
@@ -475,7 +475,7 @@ class FullRemoteFileLocation {
   // photo
   FullRemoteFileLocation(const PhotoSizeSource &source, int64 id, int64 access_hash, int32 local_id, int64 volume_id,
                          DcId dc_id, std::string file_reference)
-      : file_type_(get_photo_size_source_file_type(source))
+      : file_type_(source.get_file_type())
       , dc_id_(dc_id)
       , file_reference_(std::move(file_reference))
       , variant_(PhotoRemoteFileLocation{id, access_hash, volume_id, 0, local_id, source}) {
diff --git a/td/telegram/files/FileLocation.hpp b/td/telegram/files/FileLocation.hpp
index bcb51df69..87e296e65 100644
--- a/td/telegram/files/FileLocation.hpp
+++ b/td/telegram/files/FileLocation.hpp
@@ -10,7 +10,7 @@
 
 #include "td/telegram/files/FileType.h"
 #include "td/telegram/net/DcId.h"
-#include "td/telegram/Photo.hpp"
+#include "td/telegram/PhotoSizeSource.hpp"
 #include "td/telegram/Version.h"
 
 #include "td/utils/common.h"