diff --git a/plugins/mysql/index.py b/plugins/mysql/index.py
index 63cfeaaab..fab976df0 100755
--- a/plugins/mysql/index.py
+++ b/plugins/mysql/index.py
@@ -3115,7 +3115,7 @@ def doFullSyncUser(version=''):
 
     if os.path.exists(bak_file):
         # 重置 
-        # db.execute('reset master')
+        db.execute('reset master')
 
         # 不锁表，需要删除原来数据表
         tables = db.query('show tables from `%s`' % sync_db_import)