diff --git a/docker-compose.production.yml b/docker-compose.production.yml
index 67d9dc8..b7be1b2 100644
--- a/docker-compose.production.yml
+++ b/docker-compose.production.yml
@@ -20,7 +20,7 @@ services:
           - node.role == manager
       labels:
         - "traefik.enable=true"
-        - "traefik.http.services.jekyll.loadbalancer.server.port=:4000"
+        - "traefik.http.services.jekyll.loadbalancer.server.port=4000"
         - "traefik.http.routers.jekyll.rule=Host(`site.swarm.autonomic.zone`)"
         - "traefik.http.routers.jekyll.entrypoints=web-secure"
         - "traefik.http.routers.jekyll.tls.certresolver=staging"