diff --git a/ejabberd.yml.example b/ejabberd.yml.example
index 39e423a6449..0964afa0632 100644
--- a/ejabberd.yml.example
+++ b/ejabberd.yml.example
@@ -199,6 +199,7 @@ modules:
     default_room_options:
       mam: true
   mod_muc_admin: {}
+  mod_muc_occupantid: {}
   mod_offline:
     access_max_user_messages: max_user_offline_messages
   mod_ping: {}