diff --git a/sql/sql_update.cc b/sql/sql_update.cc
index e20647dc808..c78e246f518 100644
--- a/sql/sql_update.cc
+++ b/sql/sql_update.cc
@@ -1333,7 +1333,8 @@ multi_update::~multi_update()
   if (copy_field)
     delete [] copy_field;
   thd->count_cuted_fields= CHECK_FIELD_IGNORE;		// Restore this setting
-  DBUG_ASSERT(trans_safe || thd->transaction.all.modified_non_trans_table);
+  DBUG_ASSERT(trans_safe || !updated || 
+              thd->transaction.all.modified_non_trans_table);
 }