diff --git a/extensions/likes/src/Listener/SendNotificationWhenPostIsLiked.php b/extensions/likes/src/Listener/SendNotificationWhenPostIsLiked.php
index bb848f391..b687ff3e8 100755
--- a/extensions/likes/src/Listener/SendNotificationWhenPostIsLiked.php
+++ b/extensions/likes/src/Listener/SendNotificationWhenPostIsLiked.php
@@ -30,7 +30,7 @@ class SendNotificationWhenPostIsLiked
 
     public function handle(PostWasLiked $event)
     {
-        if ($event->post->user->id != $event->user->id) {
+        if ($event->post->user && $event->post->user->id != $event->user->id) {
             $this->notifications->sync(
                 new PostLikedBlueprint($event->post, $event->user),
                 [$event->post->user]
diff --git a/extensions/likes/src/Listener/SendNotificationWhenPostIsUnliked.php b/extensions/likes/src/Listener/SendNotificationWhenPostIsUnliked.php
index 981b3224b..78919d6a4 100755
--- a/extensions/likes/src/Listener/SendNotificationWhenPostIsUnliked.php
+++ b/extensions/likes/src/Listener/SendNotificationWhenPostIsUnliked.php
@@ -30,7 +30,7 @@ class SendNotificationWhenPostIsUnliked
 
     public function handle(PostWasUnliked $event)
     {
-        if ($event->post->user->id != $event->user->id) {
+        if ($event->post->user && $event->post->user->id != $event->user->id) {
             $this->notifications->sync(
                 new PostLikedBlueprint($event->post, $event->user),
                 []