diff --git a/Dockerfile b/Dockerfile
index 0e3539b..2d38b64 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,4 +27,6 @@ COPY --from=intermediate /src/nebula/build ./
 RUN mv linux-amd64 linux-x86_64
 
 COPY docker-entrypoint.sh entrypoint.sh
+
+EXPOSE 4242/udp
 ENTRYPOINT [ "/bin/sh", "/app/entrypoint.sh" ]