diff --git a/td/telegram/files/FileLocation.h b/td/telegram/files/FileLocation.h
index dd254319..919dd20f 100644
--- a/td/telegram/files/FileLocation.h
+++ b/td/telegram/files/FileLocation.h
@@ -92,12 +92,13 @@ struct PhotoRemoteFileLocation {
 
   struct AsKey {
     const PhotoRemoteFileLocation &key;
+    bool is_unique;
 
     template <class StorerT>
     void store(StorerT &storer) const;
   };
-  AsKey as_key() const {
-    return AsKey{*this};
+  AsKey as_key(bool is_unique) const {
+    return AsKey{*this, is_unique};
   }
 
   bool operator<(const PhotoRemoteFileLocation &other) const {
@@ -128,7 +129,7 @@ struct WebRemoteFileLocation {
     template <class StorerT>
     void store(StorerT &storer) const;
   };
-  AsKey as_key() const {
+  AsKey as_key(bool /*is_unique*/) const {
     return AsKey{*this};
   }
 
@@ -159,7 +160,7 @@ struct CommonRemoteFileLocation {
     template <class StorerT>
     void store(StorerT &storer) const;
   };
-  AsKey as_key() const {
+  AsKey as_key(bool /*is_unique*/) const {
     return AsKey{*this};
   }
 
diff --git a/td/telegram/files/FileLocation.hpp b/td/telegram/files/FileLocation.hpp
index a762ba48..252df2d1 100644
--- a/td/telegram/files/FileLocation.hpp
+++ b/td/telegram/files/FileLocation.hpp
@@ -68,7 +68,9 @@ void PhotoRemoteFileLocation::parse(ParserT &parser) {
 template <class StorerT>
 void PhotoRemoteFileLocation::AsKey::store(StorerT &storer) const {
   using td::store;
-  store(key.id_, storer);
+  if (!is_unique) {
+    store(key.id_, storer);
+  }
   store(key.volume_id_, storer);
   store(key.local_id_, storer);
 }
@@ -207,7 +209,7 @@ void FullRemoteFileLocation::AsKey::store(StorerT &storer) const {
   store(key.key_type(), storer);
   key.variant_.visit([&](auto &&value) {
     using td::store;
-    store(value.as_key(), storer);
+    store(value.as_key(false), storer);
   });
 }
 
@@ -252,7 +254,7 @@ void FullRemoteFileLocation::AsUnique::store(StorerT &storer) const {
   store(type, storer);
   key.variant_.visit([&](auto &&value) {
     using td::store;
-    store(value.as_key(), storer);
+    store(value.as_key(true), storer);
   });
 }