diff --git a/roles/docker/templates/dir2opds-compose.yml.j2 b/roles/docker/templates/dir2opds-compose.yml.j2
index 314e622..5d79e88 100644
--- a/roles/docker/templates/dir2opds-compose.yml.j2
+++ b/roles/docker/templates/dir2opds-compose.yml.j2
@@ -13,6 +13,7 @@ services:
       - -enable-cache
       - -gzip
       - -enable-html
+      - -url=https://{{ subdomains.dir2opds }}
     restart: unless-stopped
     labels:
       glance.name: dir2opds