diff --git a/contrib/for-demos/serve_hostname/Makefile b/contrib/for-demos/serve_hostname/Makefile
index 89a23d200b..3d806fee01 100644
--- a/contrib/for-demos/serve_hostname/Makefile
+++ b/contrib/for-demos/serve_hostname/Makefile
@@ -6,10 +6,10 @@ serve_hostname: serve_hostname.go
 	CGO_ENABLED=0 go build -a -installsuffix cgo --ldflags '-w' ./serve_hostname.go
 
 container: serve_hostname
-	sudo docker build -t kubernetes/serve_hostname:$(TAG) .
+	sudo docker build -t gcr.io/google-containers/serve_hostname:$(TAG) .
 
 push:
-	sudo docker push kubernetes/serve_hostname:$(TAG)
+	gcloud preview docker push gcr.io/google-containers/serve_hostname:$(TAG)
 
 clean:
 	rm -f serve_hostname