diff --git a/README.md b/README.md
index a7459007d6adaf3d19f9e8f880bf892e7f5734dc..cc4495bd7a077792835d9cd68e1bc70297181975 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # kubecfg
 
 [![Build Status](https://travis-ci.org/ksonnet/kubecfg.svg?branch=master)](https://travis-ci.org/ksonnet/kubecfg)
+[![Go Report Card](https://goreportcard.com/badge/github.com/ksonnet/kubecfg)](https://goreportcard.com/report/github.com/ksonnet/kubecfg)
 
 A tool for managing Kubernetes resources as code.
 
diff --git a/cmd/delete.go b/cmd/delete.go
index 7e84c22b316305abd74ff7749b2e53be1f74e8c3..4cf497a988624eab70ad26e9a1a04a4cd1d4e295 100644
--- a/cmd/delete.go
+++ b/cmd/delete.go
@@ -44,6 +44,9 @@ var deleteCmd = &cobra.Command{
 		}
 
 		defaultNs, _, err := clientConfig.Namespace()
+		if err != nil {
+			return err
+		}
 
 		sort.Sort(sort.Reverse(utils.DependencyOrder(objs)))
 
diff --git a/utils/registry_test.go b/utils/registry_test.go
index b1ad3a314de239f15e8b83f47bb654ddf55b4f4b..183853de45854f083116b8b84201871a5664e6e6 100644
--- a/utils/registry_test.go
+++ b/utils/registry_test.go
@@ -57,17 +57,17 @@ func TestParseAuthHeader(t *testing.T) {
 	h.Add("WWW-Authenticate", ``)
 
 	expected := []*authChallenge{
-		&authChallenge{
+		{
 			Scheme: "basic",
 			Params: map[string]string{},
 		},
-		&authChallenge{
+		{
 			Scheme: "basic",
 			Params: map[string]string{
 				"realm": "User Visible Realm",
 			},
 		},
-		&authChallenge{
+		{
 			Scheme: "bearer",
 			Params: map[string]string{
 				"realm":   "https://auth.docker.io/token",