diff --git a/nova/api/openstack/compute/routes.py b/nova/api/openstack/compute/routes.py
index d6a0422c5edc..6b0480ec555e 100644
--- a/nova/api/openstack/compute/routes.py
+++ b/nova/api/openstack/compute/routes.py
@@ -75,6 +75,7 @@ from nova.api.openstack.compute import shelve
 from nova.api.openstack.compute import simple_tenant_usage
 from nova.api.openstack.compute import suspend_server
 from nova.api.openstack.compute import used_limits
+from nova.api.openstack.compute import virtual_interfaces
 from nova.api.openstack import wsgi
 import nova.conf
 
@@ -274,6 +275,10 @@ simple_tenant_usage_controller = functools.partial(_create_controller,
     simple_tenant_usage.SimpleTenantUsageController, [], [])
 
 
+virtual_interfaces_controller = functools.partial(_create_controller,
+    virtual_interfaces.ServerVirtualInterfaceController, [], [])
+
+
 # NOTE(alex_xu): This is structure of this route list as below:
 # (
 #     ('Route path': {
@@ -553,6 +558,9 @@ ROUTE_LIST = (
         'GET': [server_password_controller, 'index'],
         'DELETE': [server_password_controller, 'clear']
     }),
+    ('/servers/{server_id}/os-virtual-interfaces', {
+        'GET': [virtual_interfaces_controller, 'index']
+    }),
     ('/servers/{server_id}/tags', {
         'GET': [server_tags_controller, 'index'],
         'PUT': [server_tags_controller, 'update_all'],
diff --git a/nova/api/openstack/compute/virtual_interfaces.py b/nova/api/openstack/compute/virtual_interfaces.py
index 6b59e9472246..5319a4855fad 100644
--- a/nova/api/openstack/compute/virtual_interfaces.py
+++ b/nova/api/openstack/compute/virtual_interfaces.py
@@ -27,9 +27,6 @@ from nova import network
 from nova.policies import virtual_interfaces as vif_policies
 
 
-ALIAS = 'os-virtual-interfaces'
-
-
 def _translate_vif_summary_view(req, vif):
     """Maps keys for VIF summary view."""
     d = {}
@@ -77,25 +74,3 @@ class ServerVirtualInterfaceController(wsgi.Controller):
         """Returns the list of VIFs for a given instance."""
         return self._items(req, server_id,
                            entity_maker=_translate_vif_summary_view)
-
-
-class VirtualInterfaces(extensions.V21APIExtensionBase):
-    """Virtual interface support."""
-
-    name = "VirtualInterfaces"
-    alias = ALIAS
-    version = 1
-
-    def get_resources(self):
-        resources = []
-
-        res = extensions.ResourceExtension(
-            ALIAS,
-            controller=ServerVirtualInterfaceController(),
-            parent=dict(member_name='server', collection_name='servers'))
-        resources.append(res)
-
-        return resources
-
-    def get_controller_extensions(self):
-        return []
diff --git a/setup.cfg b/setup.cfg
index 7735bcfac239..8542df3731da 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -94,7 +94,6 @@ nova.api.v21.extensions =
     tenant_networks = nova.api.openstack.compute.tenant_networks:TenantNetworks
     user_data = nova.api.openstack.compute.user_data:UserData
     versions = nova.api.openstack.compute.versionsV21:Versions
-    virtual_interfaces = nova.api.openstack.compute.virtual_interfaces:VirtualInterfaces
     volumes = nova.api.openstack.compute.volumes:Volumes
 
 nova.api.v21.test_extensions =