diff --git a/server/config/wireguard/docker-compose.yml b/server/config/wireguard/docker-compose.yml
index 9b02fb4..b70ba0b 100644
--- a/server/config/wireguard/docker-compose.yml
+++ b/server/config/wireguard/docker-compose.yml
@@ -11,7 +11,7 @@ services:
     networks:
       - web
     volumes:
-      - $DOCKER_DATA/wg-easy:/etc/wireguard
+      - ${DOCKER_DATA}/wg-easy:/etc/wireguard
     cap_add:
       - NET_ADMIN
       - SYS_MODULE