diff --git a/roles/docker-matrix-compose/templates/nginx.conf.j2 b/roles/docker-matrix-compose/templates/nginx.conf.j2
index 08331b79..c309d005 100644
--- a/roles/docker-matrix-compose/templates/nginx.conf.j2
+++ b/roles/docker-matrix-compose/templates/nginx.conf.j2
@@ -1,5 +1,5 @@
 server {
-    server_name {{domain}};
+    server_name {{domains.matrix_synapse}};
     {% include 'roles/letsencrypt/templates/ssl_header.j2' %}
     
     # For the federation port