diff --git a/cluster/addons/dns/skydns-svc.yaml.in b/cluster/addons/dns/skydns-svc.yaml.in
index 270b018c504..0dc488905e2 100644
--- a/cluster/addons/dns/skydns-svc.yaml.in
+++ b/cluster/addons/dns/skydns-svc.yaml.in
@@ -14,3 +14,6 @@ spec:
   - name: dns
     port: 53
     protocol: UDP
+  - name: dns-tcp
+    port: 53
+    protocol: TCP