diff --git a/pkg/registry/controller_registry.go b/pkg/registry/controller_registry.go
index d71e7f90b1f..f5dc00dd36e 100644
--- a/pkg/registry/controller_registry.go
+++ b/pkg/registry/controller_registry.go
@@ -17,8 +17,6 @@ limitations under the License.
 package registry
 
 import (
-	"encoding/json"
-
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
@@ -53,7 +51,6 @@ func (storage *ControllerRegistryStorage) Get(id string) (interface{}, error) {
 	if err != nil {
 		return nil, err
 	}
-	controller.Kind = "cluster#replicationController"
 	return controller, err
 }
 
@@ -63,8 +60,7 @@ func (storage *ControllerRegistryStorage) Delete(id string) (<-chan interface{},
 
 func (storage *ControllerRegistryStorage) Extract(body []byte) (interface{}, error) {
 	result := api.ReplicationController{}
-	err := json.Unmarshal(body, &result)
-	result.Kind = "cluster#replicationController"
+	err := api.DecodeInto(body, &result)
 	return result, err
 }
 
diff --git a/pkg/registry/controller_registry_test.go b/pkg/registry/controller_registry_test.go
index 5a96d211470..69b04e03e3b 100644
--- a/pkg/registry/controller_registry_test.go
+++ b/pkg/registry/controller_registry_test.go
@@ -121,12 +121,10 @@ func TestExtractControllerJson(t *testing.T) {
 			ID: "foo",
 		},
 	}
-	body, err := json.Marshal(controller)
+	body, err := api.Encode(&controller)
 	expectNoError(t, err)
 	controllerOut, err := storage.Extract(body)
 	expectNoError(t, err)
-	// Extract adds a Kind
-	controller.Kind = "cluster#replicationController"
 	if !reflect.DeepEqual(controller, controllerOut) {
 		t.Errorf("Expected %#v, found %#v", controller, controllerOut)
 	}
diff --git a/pkg/registry/pod_registry.go b/pkg/registry/pod_registry.go
index f1b1de4fa75..f74dea980f2 100644
--- a/pkg/registry/pod_registry.go
+++ b/pkg/registry/pod_registry.go
@@ -16,7 +16,6 @@ limitations under the License.
 package registry
 
 import (
-	"encoding/json"
 	"fmt"
 	"log"
 	"strings"
@@ -73,7 +72,6 @@ func (storage *PodRegistryStorage) List(selector labels.Selector) (interface{},
 		}
 	}
 
-	result.Kind = "cluster#podList"
 	return result, err
 }
 
@@ -128,7 +126,6 @@ func (storage *PodRegistryStorage) Get(id string) (interface{}, error) {
 	}
 	pod.CurrentState.HostIP = getInstanceIP(storage.cloud, pod.CurrentState.Host)
 
-	pod.Kind = "cluster#pod"
 	return pod, err
 }
 
@@ -138,8 +135,7 @@ func (storage *PodRegistryStorage) Delete(id string) (<-chan interface{}, error)
 
 func (storage *PodRegistryStorage) Extract(body []byte) (interface{}, error) {
 	pod := api.Pod{}
-	err := json.Unmarshal(body, &pod)
-	pod.Kind = "cluster#pod"
+	err := api.DecodeInto(body, &pod)
 	return pod, err
 }
 
diff --git a/pkg/registry/pod_registry_test.go b/pkg/registry/pod_registry_test.go
index d984feac56a..8034f3c4a7a 100644
--- a/pkg/registry/pod_registry_test.go
+++ b/pkg/registry/pod_registry_test.go
@@ -16,7 +16,6 @@ limitations under the License.
 package registry
 
 import (
-	"encoding/json"
 	"fmt"
 	"reflect"
 	"testing"
@@ -102,12 +101,10 @@ func TestExtractJson(t *testing.T) {
 			ID: "foo",
 		},
 	}
-	body, err := json.Marshal(pod)
+	body, err := api.Encode(&pod)
 	expectNoError(t, err)
 	podOut, err := storage.Extract(body)
 	expectNoError(t, err)
-	// Extract adds in a kind
-	pod.Kind = "cluster#pod"
 	if !reflect.DeepEqual(pod, podOut) {
 		t.Errorf("Expected %#v, found %#v", pod, podOut)
 	}
diff --git a/pkg/registry/service_registry.go b/pkg/registry/service_registry.go
index 6ea48c3ea77..59faa1a8ff9 100644
--- a/pkg/registry/service_registry.go
+++ b/pkg/registry/service_registry.go
@@ -17,7 +17,6 @@ limitations under the License.
 package registry
 
 import (
-	"encoding/json"
 	"fmt"
 	"strconv"
 	"strings"
@@ -64,7 +63,6 @@ func (sr *ServiceRegistryStorage) List(selector labels.Selector) (interface{}, e
 	if err != nil {
 		return nil, err
 	}
-	list.Kind = "cluster#serviceList"
 	var filtered []api.Service
 	for _, service := range list.Items {
 		if selector.Matches(labels.Set(service.Labels)) {
@@ -80,7 +78,6 @@ func (sr *ServiceRegistryStorage) Get(id string) (interface{}, error) {
 	if err != nil {
 		return nil, err
 	}
-	service.Kind = "cluster#service"
 	return service, err
 }
 
@@ -107,8 +104,7 @@ func (sr *ServiceRegistryStorage) Delete(id string) (<-chan interface{}, error)
 
 func (sr *ServiceRegistryStorage) Extract(body []byte) (interface{}, error) {
 	var svc api.Service
-	err := json.Unmarshal([]byte(body), &svc)
-	svc.Kind = "cluster#service"
+	err := api.DecodeInto(body, &svc)
 	return svc, err
 }