diff --git a/novaclient/client.py b/novaclient/client.py
index a04a92e47..790489c99 100644
--- a/novaclient/client.py
+++ b/novaclient/client.py
@@ -720,11 +720,11 @@ def _construct_http_client(username=None, password=None, project_id=None,
                            auth_token=None, cacert=None, tenant_id=None,
                            user_id=None, connection_pool=False, session=None,
                            auth=None, user_agent='python-novaclient',
-                           **kwargs):
+                           interface=None, **kwargs):
     if session:
         return SessionClient(session=session,
                              auth=auth,
-                             interface=endpoint_type,
+                             interface=interface or endpoint_type,
                              service_type=service_type,
                              region_name=region_name,
                              service_name=service_name,
diff --git a/novaclient/tests/v1_1/test_client.py b/novaclient/tests/v1_1/test_client.py
new file mode 100644
index 000000000..fa0ed3af6
--- /dev/null
+++ b/novaclient/tests/v1_1/test_client.py
@@ -0,0 +1,45 @@
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import uuid
+
+from keystoneclient import session
+
+from novaclient.tests import utils
+from novaclient.v1_1 import client
+
+
+class ClientTest(utils.TestCase):
+
+    def test_adapter_properties(self):
+        # sample of properties, there are many more
+        user_agent = uuid.uuid4().hex
+        endpoint_override = uuid.uuid4().hex
+
+        s = session.Session()
+        c = client.Client(session=s,
+                          user_agent=user_agent,
+                          endpoint_override=endpoint_override)
+
+        self.assertEqual(user_agent, c.client.user_agent)
+        self.assertEqual(endpoint_override, c.client.endpoint_override)
+
+    def test_passing_interface(self):
+        endpoint_type = uuid.uuid4().hex
+        interface = uuid.uuid4().hex
+
+        s = session.Session()
+        c = client.Client(session=s,
+                          interface=interface,
+                          endpoint_type=endpoint_type)
+
+        self.assertEqual(interface, c.client.interface)
diff --git a/novaclient/v1_1/client.py b/novaclient/v1_1/client.py
index 70d5298dc..5e26ddd64 100644
--- a/novaclient/v1_1/client.py
+++ b/novaclient/v1_1/client.py
@@ -103,7 +103,7 @@ class Client(object):
                  auth_system='keystone', auth_plugin=None, auth_token=None,
                  cacert=None, tenant_id=None, user_id=None,
                  connection_pool=False, session=None, auth=None,
-                 completion_cache=None):
+                 completion_cache=None, **kwargs):
         # FIXME(comstud): Rename the api_key argument above when we
         # know it's not being used as keyword argument
 
@@ -192,7 +192,8 @@ class Client(object):
             cacert=cacert,
             connection_pool=connection_pool,
             session=session,
-            auth=auth)
+            auth=auth,
+            **kwargs)
 
         self.completion_cache = completion_cache