diff --git a/docs/user-guide/exposing-tcp-udp-services.md b/docs/user-guide/exposing-tcp-udp-services.md
index 95e099118..4c47055d9 100644
--- a/docs/user-guide/exposing-tcp-udp-services.md
+++ b/docs/user-guide/exposing-tcp-udp-services.md
@@ -26,4 +26,5 @@ kind: ConfigMap
 metadata:
   name: udp-configmap-example
 data:
-  53: "kube-system/kube-dns:53"
+  53: "kube-system/kube-dns:53"
+```