diff --git a/app/Http/Controllers/Server/Admin/ActivityController.php b/app/Http/Controllers/Server/Admin/ActivityController.php
index 9801ae2..31a4e44 100644
--- a/app/Http/Controllers/Server/Admin/ActivityController.php
+++ b/app/Http/Controllers/Server/Admin/ActivityController.php
@@ -998,7 +998,7 @@ class ActivityController extends Controller
             $sign_qr_codes = QrCode::where('merchant_id', $request->account_id)
                 ->where('type', 'community')
                 ->where('type_id', $activity->id)
-                ->first;
+                ->first();
             $activity->sign_qr_codes = $sign_qr_codes ? $sign_qr_codes->url : "";
 
             $temp_url = urlencode(env('APP_URL') . '/pu/#/activitySignIn/' . $activity->id);