diff --git a/tasks/mastodon.yml b/tasks/mastodon.yml
index 9e54561..c1bf932 100644
--- a/tasks/mastodon.yml
+++ b/tasks/mastodon.yml
@@ -96,4 +96,4 @@
       traefik.http.routers.mst.rule: Host(`mst.fntz.net`)
       traefik.http.routers.mst.entrypoints: webSecure
       traefik.http.routers.mst.tls.certresolver: letsencrypt
-      traefik.http.services.mst.loadbalancer.server.port: "80"
+      traefik.http.services.mst.loadbalancer.server.url: "https://mastodon"