diff --git a/extensions/tags/src/Listeners/LogDiscussionTagged.php b/extensions/tags/src/Listeners/LogDiscussionTagged.php
index e44951eee..de12c30d7 100755
--- a/extensions/tags/src/Listeners/LogDiscussionTagged.php
+++ b/extensions/tags/src/Listeners/LogDiscussionTagged.php
@@ -24,7 +24,7 @@ class LogDiscussionTagged
             $event->discussion->id,
             $event->user->id,
             array_pluck($event->oldTags, 'id'),
-            $event->discussion->tags()->lists('id')
+            $event->discussion->tags()->lists('id')->all()
         );
 
         $event->discussion->mergePost($post);