diff --git a/Subscriber/MediaManagerSubscriber.php b/Subscriber/MediaManagerSubscriber.php
index e2fb4ff..49d3b25 100644
--- a/Subscriber/MediaManagerSubscriber.php
+++ b/Subscriber/MediaManagerSubscriber.php
@@ -7,7 +7,10 @@
 
 class MediaManagerSubscriber implements SubscriberInterface
 {
-    private MediaServiceInterface $mediaService;
+    /**
+     * @var MediaServiceInterface
+     */
+    private $mediaService;
 
     public function __construct(MediaServiceInterface $mediaService)
     {