diff --git a/docker/Dockerfile b/docker/Dockerfile
index 1c005fd..4d5f550 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -2,4 +2,5 @@ FROM busybox
 RUN mkdir /data
 ARG TARGETARCH
 COPY ./syndicate-server.$TARGETARCH /syndicate-server
+EXPOSE 1
 CMD ["/syndicate-server", "-c", "/data", "-p", "1"]