diff --git a/Dockerfile b/Dockerfile
index 185b02e5031b09536debd28746c4d31bad229fb4..0805051f75b78e966e24174b01ccfdf45f09e9cd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,5 +10,6 @@ MAINTAINER Erik Hedenström <erik@codemate.se>
 ADD swarm-client-1.15-jar-with-dependencies.jar /var/lib/jenkins/swarm-client.jar
 
 # Start Swarm Client
+EXPOSE 33848/udp
 ENTRYPOINT ["/usr/bin/sudo","-i","-u","jenkins","/usr/bin/java", "-jar", "/var/lib/jenkins/swarm-client.jar"]
 CMD ["--help"]
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