diff --git a/docker-compose.yml b/docker-compose.yml
index 7dd6058..d1522c2 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -15,7 +15,7 @@ services:
       - /opt/docker/eisa/lib:/data/lib:ro
 
     labels:
-      - "traefik.http.routers.expertisa-master.rule=HostRegexp(`(?i)master\\..+`)"
+      - "traefik.http.routers.expertisa-master.rule=HostRegexp(`(?i)^master\\..+`)"
       - "traefik.http.routers.expertisa-master.tls=true"
       - "traefik.http.services.expertisa-master.loadbalancer.healthcheck.path=/health/readiness"
       - "traefik.http.services.expertisa-master.loadbalancer.healthcheck.interval=5s"