diff --git a/td/telegram/FileReferenceManager.cpp b/td/telegram/FileReferenceManager.cpp
index b8cde7b0c..0010af934 100644
--- a/td/telegram/FileReferenceManager.cpp
+++ b/td/telegram/FileReferenceManager.cpp
@@ -384,6 +384,8 @@ void FileReferenceManager::memory_cleanup() {
 
         elements_it++;
       }
+      
+      file_nodes_it++;
     }
 
     if (remove) {