diff --git a/docker-compose.yml b/docker-compose.yml
index 8b4438f..df47d7c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,7 +7,7 @@ services:
     environment:
       - LANG=fr
       - WG_HOST=vpn.edipretoro.be
-      - PASSWORD_HASH=$ENV{WIREGUARD_UI_PASSWORD}
+      - PASSWORD_HASH=${WIREGUARD_UI_PASSWORD}
     labels:
       - "traefik.enable=true"
       - "traefik.docker.network=traefik"