diff --git a/td/telegram/UpdatesManager.cpp b/td/telegram/UpdatesManager.cpp
index 06b02953e..4710e3a4b 100644
--- a/td/telegram/UpdatesManager.cpp
+++ b/td/telegram/UpdatesManager.cpp
@@ -2083,7 +2083,7 @@ void UpdatesManager::on_get_pts_update(int32 pts,
       }
 
       if (!difference->new_encrypted_messages_.empty() || update_count != 1) {
-        LOG(ERROR) << "Receive unexpected updates with PTS " << pts << ": " << to_string(difference_ptr);
+        LOG(ERROR) << "Receive unexpected updates with PTS " << pts << ": " << to_string(difference);
         break;
       }