diff --git a/docker-compose.yml b/docker-compose.yml
index cc90cb0..c2e4565 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,7 +5,7 @@ services:
     image: quay.io/vouch/vouch-proxy:latest
     container_name: vouch
     restart: unless-stopped
-    environment:
+    environment: # check https://github.com/vouch/vouch-proxy/blob/master/config/config.yml_example
       #VOUCH_LOGLEVEL: "info"
       #testing: false
       #VOUCH_PORT: "9090"