diff --git a/plugins/mariadb/index.py b/plugins/mariadb/index.py
index 5249fe5a8..3ab44d6d0 100755
--- a/plugins/mariadb/index.py
+++ b/plugins/mariadb/index.py
@@ -2082,7 +2082,7 @@ def getMasterRepSlaveUserCmd(version):
     base_sql = "CHANGE MASTER " + connection_name + "TO MASTER_HOST='" + ip + "', MASTER_PORT=" + port + ", MASTER_USER='" + \
             clist[0]['username']  + "', MASTER_PASSWORD='" + \
             clist[0]['password'];
-
+    sql = ''
     sql += base_sql + "',MASTER_USE_GTID=no,MASTER_CONNECT_RETRY=10;";
     sql += "<br/><hr/>";
     sql += base_sql + "', MASTER_LOG_FILE='" + mstatus[0]["File"] + \