diff --git a/site-cookbooks/kosmos-ejabberd/recipes/default.rb b/site-cookbooks/kosmos-ejabberd/recipes/default.rb
index fc30712..7a6e588 100644
--- a/site-cookbooks/kosmos-ejabberd/recipes/default.rb
+++ b/site-cookbooks/kosmos-ejabberd/recipes/default.rb
@@ -92,6 +92,7 @@ modules:
         default_room_options:
           mam: true
         preload_rooms: true
+      mod_muc_rtbl: {}
       mod_http_upload:
         put_url: "https://uploads.kosmos.chat/8af2c77"
         external_secret: "#{ejabberd_credentials["uploads_secret"]}"
@@ -132,6 +133,7 @@ modules:
           persistent: true
           mam: true
         preload_rooms: true
+      mod_muc_rtbl: {}
       mod_http_upload:
         put_url: "https://uploads.kosmos.chat/2802cfe"
         external_secret: "#{ejabberd_credentials["uploads_secret"]}"