diff --git a/docker-compose.yml b/docker-compose.yml
index 997d3c5..509bbe1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -57,7 +57,7 @@ services:
       - webproxy
       - backend-nextcloud
     volumes:
-      - /opt/appdata/nextcloud/nginx.conf:/etc/nginx/nginx.conf
+      - /opt/appdata/nextcloud/nginx.conf:/etc/nginx/nginx.conf:ro
     volumes_from:
       - app
     container_name: nextcloud-nginx-bmen-cc