diff --git a/application/admin/controller/api/Update.php b/application/admin/controller/api/Update.php
index 5a7e8a301..aa10578e0 100644
--- a/application/admin/controller/api/Update.php
+++ b/application/admin/controller/api/Update.php
@@ -35,7 +35,7 @@ class Update extends Controller
      */
     public function tree()
     {
-        $sync = new Sync();
+        $sync = new Sync('Sync');
         $this->success('获取当前文件列表成功！', $sync->build());
     }