diff --git a/services/traefik/docker-compose.public.yml b/services/traefik/docker-compose.public.yml
index 027b7eac..6ebb3078 100644
--- a/services/traefik/docker-compose.public.yml
+++ b/services/traefik/docker-compose.public.yml
@@ -30,7 +30,7 @@ services:
       - "--certificatesresolvers.myresolver.acme.dnschallenge.delaybeforecheck=120"
       - "--certificatesresolvers.myresolver.acme.storage=/letsencrypt/acme.json"
       # For debug purpose, to avoid being ban by let's encrypt servers
-      #- ""
+      #- "--certificatesresolvers.myresolver.acme.caserver=https://acme-staging-v02.api.letsencrypt.org/directory"
       - "--certificatesresolvers.myresolver.acme.dnschallenge.resolvers=${RFC2136_NAMESERVER}"
     volumes:
       - "letsencrypt_certs:/letsencrypt"