diff --git a/framework/core/src/Api/Controller/ShowForumController.php b/framework/core/src/Api/Controller/ShowForumController.php
index f9ba91c62..9194fc895 100644
--- a/framework/core/src/Api/Controller/ShowForumController.php
+++ b/framework/core/src/Api/Controller/ShowForumController.php
@@ -25,7 +25,7 @@ class ShowForumController extends AbstractShowController
     /**
      * {@inheritdoc}
      */
-    public $include = ['groups', 'actor'];
+    public $include = ['groups', 'actor', 'actor.groups'];
 
     /**
      * {@inheritdoc}