diff --git a/sql/sql_union.cc b/sql/sql_union.cc
index 44a30082c0a..56713e42244 100644
--- a/sql/sql_union.cc
+++ b/sql/sql_union.cc
@@ -198,7 +198,7 @@ int st_select_lex_unit::prepare(THD *thd, select_result *sel_result)
       while((type= tp++, item= it++))
       {
 	if (((Item_type_holder*)type)->join_types(thd, item))
-	  DBUG_RETURN(-1)
+	  DBUG_RETURN(-1);
       }
     }
   }