diff --git a/plugins/mysql/conf/mysql.sql b/plugins/mysql/conf/mysql.sql
index 658e9030f..8262a9ec2 100755
--- a/plugins/mysql/conf/mysql.sql
+++ b/plugins/mysql/conf/mysql.sql
@@ -40,6 +40,7 @@ CREATE TABLE IF NOT EXISTS `slave_id_rsa` (
   `addtime` TEXT
 );
 
+-- 从库配置主库的[user]
 -- drop table `slave_user`;
 CREATE TABLE IF NOT EXISTS `slave_sync_user` (
   `id` INTEGER PRIMARY KEY AUTOINCREMENT,