diff --git a/cluster/addons/dns/kube2sky/Makefile b/cluster/addons/dns/kube2sky/Makefile
index 3c70ef3cb76..a80c17b252d 100644
--- a/cluster/addons/dns/kube2sky/Makefile
+++ b/cluster/addons/dns/kube2sky/Makefile
@@ -1,13 +1,22 @@
-all: kube2sky
+# Makefile for the Docker image gcr.io/google_containers/kube2sky
+# MAINTAINER: Tim Hockin <thockin@google.com>
+# If you update this image please bump the tag value before pushing.
+
+.PHONY: all kube2sky container push clean
+
+TAG = 1.4
+PREFIX = gcr.io/google_containers
+
+all: container
 
 kube2sky: kube2sky.go
 	CGO_ENABLED=0 godep go build -a -installsuffix cgo --ldflags '-w' ./kube2sky.go
 
 container: kube2sky
-	docker build -t gcr.io/google_containers/kube2sky .
+	docker build -t $(PREFIX)/kube2sky:$(TAG) .
 
 push:
-	gcloud preview docker push gcr.io/google_containers/kube2sky
+	gcloud preview docker push $(PREFIX)/kube2sky:$(TAG)
 
 clean:
 	rm -f kube2sky