diff --git a/framework/core/src/Core/Command/StartDiscussionHandler.php b/framework/core/src/Core/Command/StartDiscussionHandler.php
index e1bdd0cba..527a8a2ab 100644
--- a/framework/core/src/Core/Command/StartDiscussionHandler.php
+++ b/framework/core/src/Core/Command/StartDiscussionHandler.php
@@ -92,6 +92,7 @@ class StartDiscussionHandler
         // last_time.)
         $discussion->setRawAttributes($post->discussion->getAttributes(), true);
         $discussion->setStartPost($post);
+        $discussion->setLastPost($post);
 
         $this->dispatchEventsFor($discussion, $actor);