diff --git a/db/update21.0.sql b/db/update21.0.sql
index bdd5361771..d40fc79b6e 100644
--- a/db/update21.0.sql
+++ b/db/update21.0.sql
@@ -45,3 +45,4 @@ DROP TABLE IF EXISTS `zt_account`;
 DELETE FROM `zt_lang` WHERE `module` = 'host' AND `section` = 'cpuBrandList';
 DELETE FROM `zt_action` WHERE `objectType` = 'account';
 DELETE FROM `zt_actionrecent` WHERE `objectType` = 'account';
+DELETE FROM `zt_config` WHERE `module` ='common' AND `section` = 'zentaoWebsite';