diff --git a/site-cookbooks/kosmos-ejabberd/templates/ejabberd.yml.erb b/site-cookbooks/kosmos-ejabberd/templates/ejabberd.yml.erb
index 9d6852f..583a205 100644
--- a/site-cookbooks/kosmos-ejabberd/templates/ejabberd.yml.erb
+++ b/site-cookbooks/kosmos-ejabberd/templates/ejabberd.yml.erb
@@ -237,7 +237,7 @@ modules:
   mod_version:
     show_os: false
 
-host_config:
+append_host_config:
   "kosmos.org":
     modules:
       mod_muc: