diff --git a/docker-compose.yml b/docker-compose.yml
index b86a9d2..16b4e03 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -20,6 +20,8 @@ services:
   caddy:
     image: caddy:2
     container_name: caddy
+    environment:
+      - DOMAIN=${DOMAIN}
     restart: always
     ports:
       - "80:80"