diff --git a/nginx-proxy/docker-compose.yml b/nginx-proxy/docker-compose.yml
index e92bb3e..6421b2a 100644
--- a/nginx-proxy/docker-compose.yml
+++ b/nginx-proxy/docker-compose.yml
@@ -18,7 +18,7 @@ services:
     image: nginxproxy/acme-companion
     container_name: nginx-proxy-acme
     environment:
-      - DEFAULT_EMAIL: ${EMAIL}
+      DEFAULT_EMAIL: ${EMAIL}
     volumes_from:
       - nginx-proxy
     volumes: