diff --git a/td/telegram/files/FileLocation.h b/td/telegram/files/FileLocation.h
index 7d188e0a..89400fd2 100644
--- a/td/telegram/files/FileLocation.h
+++ b/td/telegram/files/FileLocation.h
@@ -393,6 +393,9 @@ class FullRemoteFileLocation {
         return 0;
     }
   }
+  void clear_file_reference() {
+    file_reference_ = "";
+  }
 
   bool delete_file_reference(Slice bad_file_reference) {
     auto res = FileReferenceView(file_reference_).delete_file_reference(bad_file_reference);
diff --git a/td/telegram/files/FileManager.cpp b/td/telegram/files/FileManager.cpp
index 5ce8b2f4..f08a0393 100644
--- a/td/telegram/files/FileManager.cpp
+++ b/td/telegram/files/FileManager.cpp
@@ -2435,7 +2435,9 @@ string FileManager::get_persistent_id(const FullGenerateFileLocation &location)
   return base64url_encode(binary);
 }
 string FileManager::get_persistent_id(const FullRemoteFileLocation &location) {
-  auto binary = serialize(location);
+  auto location_copy = location;
+  location_copy.clear_file_reference();
+  auto binary = serialize(location_copy);
 
   binary = zero_encode(binary);
   binary.push_back(PERSISTENT_ID_VERSION);