diff --git a/Listener/ODM/MediaEventSubscriber.php b/Listener/ODM/MediaEventSubscriber.php
index f3616d579..1e856b404 100644
--- a/Listener/ODM/MediaEventSubscriber.php
+++ b/Listener/ODM/MediaEventSubscriber.php
@@ -36,7 +36,7 @@ public function getSubscribedEvents()
      * @param \Doctrine\Common\EventArgs $args
      * @return void
      */
-    private function recomputeSingleEntityChangeSet(EventArgs $args)
+    protected function recomputeSingleEntityChangeSet(EventArgs $args)
     {
         $em = $args->getDocumentManager();