diff --git a/docker-compose.yaml b/docker-compose.yaml
index 8467fee..980bc3d 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -64,7 +64,7 @@ services:
     image: ghcr.io/zitadel/zitadel-login:latest
     # If you can't use the network_mode service:zitadel, you can pass the environment variables ZITADEL_API_URL=http://zitadel:8080 and CUSTOM_REQUEST_HEADERS=Host:localhost instead.
     environment:
-      - ZITADEL_API_URL=${ZITADEL_EXTERNALDOMAIN:-http://zitadel:8080}
+      - ZITADEL_API_URL=${FULL_LOGIN_URL:-http://zitadel:8080}
       - NEXT_PUBLIC_BASE_PATH=/ui/v2/login
       - ZITADEL_SERVICE_USER_TOKEN_FILE=/current-dir/login-client.pat
     network_mode: service:zitadel