diff --git a/sql/sql_update.cc b/sql/sql_update.cc
index cb3f2fece89..7673126314f 100644
--- a/sql/sql_update.cc
+++ b/sql/sql_update.cc
@@ -679,7 +679,7 @@ int mysql_update(THD *thd,
         */
         if (will_batch &&
             ((error= table->file->exec_bulk_update(&dup_key_found)) ||
-            !dup_key_found))
+             dup_key_found))
         {
  	  if (error)
           {