diff --git a/app/Controllers/Mangboard/CrawlerController.php b/app/Controllers/Mangboard/CrawlerController.php
index 42688b7..378b077 100644
--- a/app/Controllers/Mangboard/CrawlerController.php
+++ b/app/Controllers/Mangboard/CrawlerController.php
@@ -20,7 +20,7 @@ class CrawlerController extends CommonController
         }
         return $this->_user_model;
     }
-    public function login(string $id): bool|UserEntity
+    public function login(string $id = ""): bool|UserEntity
     {
         $host        = getenv("mangboard.host.url");
         $id = $id == "" ? getenv("mangboard.login.default.id") : $id;