diff --git a/CMakeLists.txt b/CMakeLists.txt
index 729a6d324..0d8f31145 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -657,7 +657,7 @@ set(TDLIB_SOURCE
   td/telegram/SequenceDispatcher.h
   td/telegram/ServerMessageId.h
   td/telegram/SetWithPosition.h
-  td/telegram/SpecialStickerSetType.cpp
+  td/telegram/SpecialStickerSetType.h
   td/telegram/StateManager.h
   td/telegram/StickerSetId.h
   td/telegram/StickersManager.h
diff --git a/td/telegram/ConfigManager.cpp b/td/telegram/ConfigManager.cpp
index 83a8d0d14..fa0d288d6 100644
--- a/td/telegram/ConfigManager.cpp
+++ b/td/telegram/ConfigManager.cpp
@@ -1093,7 +1093,7 @@ void ConfigManager::on_result(NetQueryPtr res) {
   auto r_config = fetch_result<telegram_api::help_getConfig>(std::move(res));
   if (r_config.is_error()) {
     if (!G()->close_flag()) {
-      LOG(ERROR) << "getConfig failed: " << r_config.error();
+      LOG(WARNING) << "Failed to get config: " << r_config.error();
       expire_time_ = Timestamp::in(60.0);  // try again in a minute
       set_timeout_in(expire_time_.in());
     }
diff --git a/td/telegram/ContactsManager.cpp b/td/telegram/ContactsManager.cpp
index 7ba482b35..aaf497313 100644
--- a/td/telegram/ContactsManager.cpp
+++ b/td/telegram/ContactsManager.cpp
@@ -48,7 +48,6 @@
 
 #include "td/utils/base64.h"
 #include "td/utils/buffer.h"
-#include "td/utils/port/Clocks.h"
 #include "td/utils/format.h"
 #include "td/utils/logging.h"
 #include "td/utils/misc.h"
diff --git a/td/telegram/SpecialStickerSetType.cpp b/td/telegram/SpecialStickerSetType.cpp
index 7e0eed43b..6d529e102 100644
--- a/td/telegram/SpecialStickerSetType.cpp
+++ b/td/telegram/SpecialStickerSetType.cpp
@@ -8,6 +8,7 @@
 
 #include "td/utils/logging.h"
 #include "td/utils/misc.h"
+#include "td/utils/Slice.h"
 
 namespace td {
 
diff --git a/td/telegram/StickersManager.cpp b/td/telegram/StickersManager.cpp
index 6ff68bf45..c42669b5a 100644
--- a/td/telegram/StickersManager.cpp
+++ b/td/telegram/StickersManager.cpp
@@ -3611,7 +3611,7 @@ std::pair<int32, vector<StickerSetId>> StickersManager::get_featured_sticker_set
   }
 
   promise.set_value(Unit());
-  return {total_count, Auto()};
+  return {total_count, vector<StickerSetId>()};
 }
 
 void StickersManager::on_old_featured_sticker_sets_invalidated() {
diff --git a/td/telegram/Td.cpp b/td/telegram/Td.cpp
index 1537614d7..d017ad1a1 100644
--- a/td/telegram/Td.cpp
+++ b/td/telegram/Td.cpp
@@ -4361,7 +4361,7 @@ void Td::send_update(tl_object_ptr<td_api::Update> &&object) {
   }
 
   callback_->on_result(0, std::move(object));
-}  // namespace td
+}
 
 void Td::send_result(uint64 id, tl_object_ptr<td_api::Object> object) {
   if (id == 0) {
diff --git a/td/telegram/files/FileManager.cpp b/td/telegram/files/FileManager.cpp
index d65279b25..777f7f240 100644
--- a/td/telegram/files/FileManager.cpp
+++ b/td/telegram/files/FileManager.cpp
@@ -4,7 +4,6 @@
 // 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/files/FileManager.h"
 
 #include "td/telegram/telegram_api.h"