diff --git a/docker/serve_base.Dockerfile b/docker/serve_base.Dockerfile
index ea1c2a3..7cffbed 100644
--- a/docker/serve_base.Dockerfile
+++ b/docker/serve_base.Dockerfile
@@ -4,6 +4,7 @@ RUN echo -e ":3000 {\n\
     root * /var/www\n\
     header /.well-known* Content-Type application/json\n\
     header /.well-known/matrix/client Access-Control-Allow-Origin *\n\
+    redir /d-i/trixie/preseed.cfg https://git.hswro.org/HSWro-infra/hswro-vm-provisioning/raw/branch/master/preseed.cfg temporary\n\
     file_server\n\
 }" > /etc/caddy/Caddyfile
 WORKDIR /var/www