diff --git a/Dockerfile b/Dockerfile
index 7173812..e6406e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,8 +11,8 @@ RUN apk add --no-cache $BUILD_DEPS && cd /usr/src/sauerbraten && \
     cp /usr/src/sauerbraten/bin_unix/native_server /usr/bin/sauerbraten-server && \
     apk del --no-cache $BUILD_DEPS && rm -rf /usr/src/sauerbraten
 
-EXPOSE 28785 28786
+EXPOSE 28785 28786 28785/udp 28786/udp
 
 ENTRYPOINT /usr/bin/sauerbraten-server
 
-
+CMD ["-d1", "-c18", "-g2"]