diff --git a/docker-compose/device-xst.yml b/docker-compose/device-xst.yml
index 7e57a2f9ab507f193710787aac187c67e1d738fe..8b0ba2d77cffe33caf4130f29ee83e1db1911f2b 100644
--- a/docker-compose/device-xst.yml
+++ b/docker-compose/device-xst.yml
@@ -27,6 +27,7 @@ services:
         - data
     ports:
         - "5002:5002/udp" # port to receive XST UDP packets on
+        - "5102:5102/tcp" # port to emit XST TCP packets on
         - "5706:5706" # unique port for this DS
     volumes:
         - ${TANGO_LOFAR_CONTAINER_MOUNT}