diff --git a/app/admin/controller/InvItemController.php b/app/admin/controller/InvItemController.php
index f2aba20..33337ec 100644
--- a/app/admin/controller/InvItemController.php
+++ b/app/admin/controller/InvItemController.php
@@ -51,7 +51,7 @@ class InvItemController extends BaseController
              $data['company_name'] = Corp::where('id', $data['company_id'])->value('name');
          if (isset($data['manage_user_id']))
              $data['manage_user_name'] = User::where('id', $data['manage_user_id'])->value('name');
-         if (isset($data['qr_code']))
+         if (!empty($data['qr_code']))
              $data['qr_code_pull'] = (new OssService)->generatePrivateUrl($data['qr_code']);;
          return $data;
      }