diff --git a/setup/.env b/setup/.env
index 47db5c89..9a8293fe 100644
--- a/setup/.env
+++ b/setup/.env
@@ -1,5 +1,5 @@
 # Hostname passed to Traefik
-HOSTNAME=setup.mailu.io
+ADDRESS=setup.mailu.io
 
 # Current release
 RELEASE=test
diff --git a/setup/docker-compose.yml b/setup/docker-compose.yml
index 5a16e5b5..7c31d2cd 100644
--- a/setup/docker-compose.yml
+++ b/setup/docker-compose.yml
@@ -16,7 +16,7 @@ services:
     labels:
       - traefik.enable=true
       - traefik.port=80
-      - traefik.main.frontend.rule=Host:${HOSTNAME};PathPrefix:/master/
+      - traefik.main.frontend.rule=Host:${ADDRESS};PathPrefix:/master/
     depends_on:
       - redis
 
@@ -32,8 +32,8 @@ services:
       - traefik.port=80
       - traefik.root.frontend.redirect.regex=.*
       - traefik.root.frontend.redirect.replacement=/${RELEASE}/
-      - traefik.root.frontend.rule=Host:${HOSTNAME};PathPrefix:/
-      - traefik.main.frontend.rule=Host:${HOSTNAME};PathPrefix:/${RELEASE}/
+      - traefik.root.frontend.rule=Host:${ADDRESS};PathPrefix:/
+      - traefik.main.frontend.rule=Host:${ADDRESS};PathPrefix:/${RELEASE}/
     depends_on:
       - redis