diff --git a/app/Http/Resources/Api/UserActivityResource.php b/app/Http/Resources/Api/UserActivityResource.php
index ac71e49..f352e44 100644
--- a/app/Http/Resources/Api/UserActivityResource.php
+++ b/app/Http/Resources/Api/UserActivityResource.php
@@ -16,6 +16,7 @@ class UserActivityResource extends JsonResource
     public function toArray($request)
     {
         return [
+            'user_id' => $this->user_id,
             'nick_name' => $this->whenLoaded('user', function () {
                 return $this->user?->nick_name ?? '';
             }, ''),