diff --git a/app/Endpoint/Api/Http/Controllers/AppVersionController.php b/app/Endpoint/Api/Http/Controllers/AppVersionController.php
index 063c4670..248e414c 100644
--- a/app/Endpoint/Api/Http/Controllers/AppVersionController.php
+++ b/app/Endpoint/Api/Http/Controllers/AppVersionController.php
@@ -51,7 +51,7 @@ class AppVersionController extends Controller
                 'name' => (string) $appVersion->name,
                 'v' => (int) $appVersion->v,
                 'is_force' => (bool) $appVersion->is_force,
-                'link' => (string) $appVersion->wgt_link ?? $appVersion->apk_link,
+                'link' => (string) ($appVersion->wgt_link ?? $appVersion->apk_link),
             ];
         }
         return response()->json($res);