diff --git a/README.md b/README.md
index d35b8f589..fb814af3c 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,6 @@
 ## Quick instance
 
 ```
-export PASSBOOK_DOMAIN=localhost
 # Optionally enable Error-reporting
 # export PASSBOOK_ERROR_REPORTING=true
 docker-compose pull
diff --git a/docker-compose.yml b/docker-compose.yml
index e6d47df3f..e18059a4e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -26,7 +26,6 @@ services:
       - uwsgi
       - uwsgi.ini
     environment:
-      - PASSBOOK_DOMAIN=${PASSBOOK_DOMAIN}
       - PASSBOOK_REDIS__HOST=redis
       - PASSBOOK_ERROR_REPORTING=${PASSBOOK_ERROR_REPORTING:-false}
       - PASSBOOK_POSTGRESQL__HOST=postgresql
@@ -54,7 +53,6 @@ services:
     labels:
       - traefik.enable=false
     environment:
-      - PASSBOOK_DOMAIN=${PASSBOOK_DOMAIN}
       - PASSBOOK_REDIS__HOST=redis
       - PASSBOOK_ERROR_REPORTING=${PASSBOOK_ERROR_REPORTING:-false}
       - PASSBOOK_POSTGRESQL__HOST=postgresql