diff --git a/nova/api/openstack/compute/routes.py b/nova/api/openstack/compute/routes.py
index 0ca1388617f5..9b776d318abd 100644
--- a/nova/api/openstack/compute/routes.py
+++ b/nova/api/openstack/compute/routes.py
@@ -59,6 +59,7 @@ from nova.api.openstack.compute import remote_consoles
 from nova.api.openstack.compute import rescue
 from nova.api.openstack.compute import security_groups
 from nova.api.openstack.compute import server_metadata
+from nova.api.openstack.compute import server_migrations
 from nova.api.openstack.compute import server_password
 from nova.api.openstack.compute import server_tags
 from nova.api.openstack.compute import server_usage
@@ -218,6 +219,10 @@ server_metadata_controller = functools.partial(_create_controller,
     server_metadata.ServerMetadataController, [], [])
 
 
+server_migrations_controller = functools.partial(_create_controller,
+    server_migrations.ServerMigrationsController, [], [])
+
+
 server_os_interface_controller = functools.partial(_create_controller,
     attach_interfaces.InterfaceAttachmentController, [], [])
 
@@ -430,6 +435,16 @@ ROUTE_LIST = (
         'PUT': [server_metadata_controller, 'update'],
         'DELETE': [server_metadata_controller, 'delete'],
     }),
+    ('/servers/{server_id}/migrations', {
+        'GET': [server_migrations_controller, 'index']
+    }),
+    ('/servers/{server_id}/migrations/{id}', {
+        'GET': [server_migrations_controller, 'show'],
+        'DELETE': [server_migrations_controller, 'delete']
+    }),
+    ('/servers/{server_id}/migrations/{id}/action', {
+        'POST': [server_migrations_controller, 'action']
+    }),
     ('/servers/{server_id}/os-interface', {
         'GET': [server_os_interface_controller, 'index'],
         'POST': [server_os_interface_controller, 'create']
diff --git a/nova/api/openstack/compute/server_migrations.py b/nova/api/openstack/compute/server_migrations.py
index a39082860ed7..c0fd4c38b5ae 100644
--- a/nova/api/openstack/compute/server_migrations.py
+++ b/nova/api/openstack/compute/server_migrations.py
@@ -26,9 +26,6 @@ from nova.i18n import _
 from nova.policies import servers_migrations as sm_policies
 
 
-ALIAS = 'servers:migrations'
-
-
 def output(migration):
     """Returns the desired output of the API from an object.
 
@@ -153,22 +150,3 @@ class ServerMigrationsController(wsgi.Controller):
             raise exc.HTTPNotFound(explanation=e.format_message())
         except exception.InvalidMigrationState as e:
             raise exc.HTTPBadRequest(explanation=e.format_message())
-
-
-class ServerMigrations(extensions.V21APIExtensionBase):
-    """Server Migrations API."""
-    name = "ServerMigrations"
-    alias = 'server-migrations'
-    version = 1
-
-    def get_resources(self):
-        parent = {'member_name': 'server',
-                  'collection_name': 'servers'}
-        member_actions = {'action': 'POST'}
-        resources = [extensions.ResourceExtension(
-            'migrations', ServerMigrationsController(),
-            parent=parent, member_actions=member_actions)]
-        return resources
-
-    def get_controller_extensions(self):
-        return []
diff --git a/setup.cfg b/setup.cfg
index 5b2f6a04e5f3..cdb83c62a01e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -96,7 +96,6 @@ nova.api.v21.extensions =
     security_groups = nova.api.openstack.compute.security_groups:SecurityGroups
     server_diagnostics = nova.api.openstack.compute.server_diagnostics:ServerDiagnostics
     server_external_events = nova.api.openstack.compute.server_external_events:ServerExternalEvents
-    server_migrations = nova.api.openstack.compute.server_migrations:ServerMigrations
     server_groups = nova.api.openstack.compute.server_groups:ServerGroups
     services = nova.api.openstack.compute.services:Services
     tenant_networks = nova.api.openstack.compute.tenant_networks:TenantNetworks