diff --git a/function/common.php b/function/common.php
index f9b87e6..a753d46 100644
--- a/function/common.php
+++ b/function/common.php
@@ -594,7 +594,7 @@ function main($path)
             return $tmp;
         }
     } else {
-        if ($_SERVER['ajax']) return output(getconstStr('RefleshtoLogin'),401);
+        if ($_SERVER['ajax']) return output(getconstStr('RefreshtoLogin'),401);
     }
     $_SERVER['ishidden'] = passhidden($path);
     if ($_GET['thumbnails']) {