diff --git a/templates/mm_cfg.py.erb b/templates/mm_cfg.py.erb
index c18a749..1b20b66 100644
--- a/templates/mm_cfg.py.erb
+++ b/templates/mm_cfg.py.erb
@@ -63,10 +63,10 @@ IMAGE_LOGOS         = '/images/mailman/'
 
 #-------------------------------------------------------------
 # Default domain for email addresses of newly created MLs
-DEFAULT_EMAIL_HOST = '<%= vhost_name %>'
+DEFAULT_EMAIL_HOST = '<%= @vhost_name %>'
 #-------------------------------------------------------------
 # Default host for web interface of newly created MLs
-DEFAULT_URL_HOST   = '<%= vhost_name %>'
+DEFAULT_URL_HOST   = '<%= @vhost_name %>'
 #-------------------------------------------------------------
 # Required when setting any of its arguments.
 add_virtualhost(DEFAULT_URL_HOST, DEFAULT_EMAIL_HOST)