diff --git a/components/Group/Group.php b/components/Group/Group.php
index 2be246d166..318b68ff3b 100644
--- a/components/Group/Group.php
+++ b/components/Group/Group.php
@@ -104,7 +104,7 @@ class Group extends Component
                 case 'group_actor_view_nickname':
                     return LocalGroup::getActorByNickname($identifier);
                 case 'group_actor_view_id':
-                    return Actor::getById($identifier);
+                    return Actor::getById((int) $identifier);
             }
         }
         return null;