diff --git a/staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go b/staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go
index 71088c6f0df..7b7405289a8 100644
--- a/staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go
+++ b/staging/src/k8s.io/apiserver/pkg/endpoints/apiserver_test.go
@@ -405,8 +405,8 @@ func (s *SimpleStream) Close() error {
 	return nil
 }
 
-func (obj *SimpleStream) GetObjectKind() schema.ObjectKind { return schema.EmptyObjectKind }
-func (obj *SimpleStream) DeepCopyObject() runtime.Object {
+func (s *SimpleStream) GetObjectKind() schema.ObjectKind { return schema.EmptyObjectKind }
+func (s *SimpleStream) DeepCopyObject() runtime.Object {
 	panic("SimpleStream does not support DeepCopy")
 }
 
diff --git a/staging/src/k8s.io/apiserver/pkg/server/hooks.go b/staging/src/k8s.io/apiserver/pkg/server/hooks.go
index b33ddd04618..065df6bc5cc 100644
--- a/staging/src/k8s.io/apiserver/pkg/server/hooks.go
+++ b/staging/src/k8s.io/apiserver/pkg/server/hooks.go
@@ -233,13 +233,13 @@ func (h postStartHookHealthz) Name() string {
 	return h.name
 }
 
-var hookNotFinished = errors.New("not finished")
+var errHookNotFinished = errors.New("not finished")
 
 func (h postStartHookHealthz) Check(req *http.Request) error {
 	select {
 	case <-h.done:
 		return nil
 	default:
-		return hookNotFinished
+		return errHookNotFinished
 	}
 }