diff --git a/docker-compose.yml b/docker-compose.yml
index 0356685..d85e963 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -14,6 +14,7 @@ services:
       - SEAFILE_ADMIN_PASSWORD=&u4irA*F5PJ8YRdd
       - SEAFILE_SERVER_LETSENCRYPT=false
       - SEAFILE_SERVER_HOSTNAME=seafile.zinomedia.de
+      - FORCE_HTTPS_IN_CONF=true
     depends_on:
       - seafile-mariadb
       - seafile-memcached