diff --git a/extensions/pusher/src/Api/Controller/AuthController.php b/extensions/pusher/src/Api/Controller/AuthController.php
index 0ce7bcf66..8fac2c880 100644
--- a/extensions/pusher/src/Api/Controller/AuthController.php
+++ b/extensions/pusher/src/Api/Controller/AuthController.php
@@ -9,6 +9,7 @@
 
 namespace Flarum\Pusher\Api\Controller;
 
+use Flarum\Http\RequestUtil;
 use Flarum\Settings\SettingsRepositoryInterface;
 use Illuminate\Support\Arr;
 use Laminas\Diactoros\Response\EmptyResponse;
@@ -39,7 +40,7 @@ class AuthController implements RequestHandlerInterface
      */
     public function handle(ServerRequestInterface $request): ResponseInterface
     {
-        $userChannel = 'private-user'.$request->getAttribute('actor')->id;
+        $userChannel = 'private-user'.RequestUtil::getActor($request)->id;
         $body = $request->getParsedBody();
 
         if (Arr::get($body, 'channel_name') === $userChannel) {