diff --git a/src/danog/MadelineProto/MTProtoTools/UpdateHandler.php b/src/danog/MadelineProto/MTProtoTools/UpdateHandler.php
index d296e4c9..02b4eea6 100644
--- a/src/danog/MadelineProto/MTProtoTools/UpdateHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/UpdateHandler.php
@@ -184,6 +184,10 @@ trait UpdateHandler
             }
 
             throw $e;
+        } catch (\danog\MadelineProto\PTSException $e) {
+            unset($this->channels_state[$channel]);
+            $this->load_channel_state($channel)['sync_loading'] = false;
+            return $this->get_channel_difference($channel);
         } finally {
             $this->load_channel_state($channel)['sync_loading'] = false;
         }