diff --git a/tests/pytest/stable/json_tag.py b/tests/pytest/stable/json_tag.py
index e0b135d9adb7eae65f13b0733761f0c542081d9f..b65b4b9c56988364741007b158ac90b30593cd63 100644
--- a/tests/pytest/stable/json_tag.py
+++ b/tests/pytest/stable/json_tag.py
@@ -257,7 +257,7 @@ class TDTestCase:
         tdSql.error("CREATE TABLE if not exists db_json_tag_test.jsons1_13 using db_json_tag_test.jsons1 tags('{\"试试\":\"fff\",\";id\":5}')")
         tdSql.error("insert into db_json_tag_test.jsons1_13 using db_json_tag_test.jsons1 tags(3)")
 
-def stop(self):
+    def stop(self):
         tdSql.close()
         tdLog.success("%s successfully executed" % __file__)