diff --git a/swarm/thelounge.yml b/swarm/thelounge.yml
index 7c84ead..2119d55 100644
--- a/swarm/thelounge.yml
+++ b/swarm/thelounge.yml
@@ -13,7 +13,7 @@ services:
         - traefik.enable=true
         - traefik.docker.network=traefik-public
         - traefik.constraint-label=traefik-public
-        - traefik.http.routers.thelounge-https.rule=Host(irc.`${DOMAIN?Variable not set}`)
+        - traefik.http.routers.thelounge-https.rule=Host(`irc.${DOMAIN?Variable not set}`)
         - traefik.http.routers.thelounge-https.entrypoints=https
         - traefik.http.routers.thelounge-https.tls=true
         - traefik.http.routers.thelounge-https.tls.certresolver=le