diff --git a/module/upgrade/control.php b/module/upgrade/control.php
index 52e880149b..8f9dd4f224 100644
--- a/module/upgrade/control.php
+++ b/module/upgrade/control.php
@@ -56,7 +56,8 @@ class upgrade extends control
     }
 
     /**
-     * Backup.
+     * 提示备份数据库。
+     * Prompt to backup database.
      *
      * @access public
      * @return void