diff --git a/nova/api/openstack/compute/contrib/disk_config.py b/nova/api/openstack/compute/contrib/disk_config.py
index 30aac0acca5..cf78b847e39 100644
--- a/nova/api/openstack/compute/contrib/disk_config.py
+++ b/nova/api/openstack/compute/contrib/disk_config.py
@@ -24,8 +24,8 @@
 from nova import db
 from nova import utils
 
-ALIAS = 'RAX-DCF'
-XMLNS_DCF = "http://docs.rackspacecloud.com/servers/api/ext/diskConfig/v1.0"
+ALIAS = 'OS-DCF'
+XMLNS_DCF = "http://docs.openstack.org/compute/ext/disk_config/api/v1.1"
 API_DISK_CONFIG = "%s:diskConfig" % ALIAS
 INTERNAL_DISK_CONFIG = "auto_disk_config"
 
diff --git a/nova/tests/api/openstack/compute/contrib/test_disk_config.py b/nova/tests/api/openstack/compute/contrib/test_disk_config.py
index bd995fd3de1..b897c5e719f 100644
--- a/nova/tests/api/openstack/compute/contrib/test_disk_config.py
+++ b/nova/tests/api/openstack/compute/contrib/test_disk_config.py
@@ -35,6 +35,9 @@
 FLAGS = flags.FLAGS
 
 
+API_DISK_CONFIG = 'OS-DCF:diskConfig'
+
+
 def instance_addresses(context, instance_id):
     return None
 
@@ -123,8 +126,8 @@ def fake_instance_add_security_group(context, instance_id,
         self.app = app
 
     def assertDiskConfig(self, dict_, value):
-        self.assert_('RAX-DCF:diskConfig' in dict_)
-        self.assertEqual(dict_['RAX-DCF:diskConfig'], value)
+        self.assert_(API_DISK_CONFIG in dict_)
+        self.assertEqual(dict_[API_DISK_CONFIG], value)
 
     def test_show_server(self):
         req = fakes.HTTPRequest.blank(
@@ -181,7 +184,7 @@ def test_create_server_override_auto(self):
                   'name': 'server_test',
                   'imageRef': 'cedef40a-ed67-4d10-800e-17455edce175',
                   'flavorRef': '1',
-                  'RAX-DCF:diskConfig': 'AUTO'
+                  API_DISK_CONFIG: 'AUTO'
                }}
 
         req.body = utils.dumps(body)
@@ -197,7 +200,7 @@ def test_create_server_override_manual(self):
                   'name': 'server_test',
                   'imageRef': 'cedef40a-ed67-4d10-800e-17455edce175',
                   'flavorRef': '1',
-                  'RAX-DCF:diskConfig': 'MANUAL'
+                  API_DISK_CONFIG: 'MANUAL'
                }}
 
         req.body = utils.dumps(body)
@@ -243,10 +246,11 @@ def test_update_server_invalid_disk_config(self):
             '/fake/servers/%s' % MANUAL_INSTANCE_UUID)
         req.method = 'PUT'
         req.content_type = 'application/json'
-        body = {'server': {'RAX-DCF:diskConfig': 'server_test'}}
+        body = {'server': {API_DISK_CONFIG: 'server_test'}}
         req.body = utils.dumps(body)
         res = req.get_response(self.app)
         self.assertEqual(res.status_int, 400)
-        expected_msg = '{"badRequest": {"message": "RAX-DCF:diskConfig must'\
-                       ' be either \'MANUAL\' or \'AUTO\'.", "code": 400}}'
+        expected_msg = ('{"badRequest": {"message": "%s must be either'
+                        ' \'MANUAL\' or \'AUTO\'.", "code": 400}}' %
+                        API_DISK_CONFIG)
         self.assertEqual(res.body, expected_msg)