diff --git a/nova/api/openstack/servers.py b/nova/api/openstack/servers.py
index f7696d9182de..d47ea5788b4a 100644
--- a/nova/api/openstack/servers.py
+++ b/nova/api/openstack/servers.py
@@ -180,8 +180,7 @@ class Controller(wsgi.Controller):
 
         builder = self._get_view_builder(req)
         server = builder.build(inst, is_detail=True)
-        password = "%s%s" % (server['server']['name'][:4],
-                             utils.generate_password(12))
+        password = utils.generate_password(16)
         server['server']['adminPass'] = password
         self.compute_api.set_admin_password(context, server['server']['id'],
                                             password)
diff --git a/nova/tests/api/openstack/test_servers.py b/nova/tests/api/openstack/test_servers.py
index 130b8c5d55d7..5fbc9837bd10 100644
--- a/nova/tests/api/openstack/test_servers.py
+++ b/nova/tests/api/openstack/test_servers.py
@@ -377,7 +377,6 @@ class ServersTest(test.TestCase):
         res = req.get_response(fakes.wsgi_app())
 
         server = json.loads(res.body)['server']
-        self.assertEqual('serv', server['adminPass'][:4])
         self.assertEqual(16, len(server['adminPass']))
         self.assertEqual('server_test', server['name'])
         self.assertEqual(1, server['id'])
@@ -486,7 +485,6 @@ class ServersTest(test.TestCase):
         res = req.get_response(fakes.wsgi_app())
 
         server = json.loads(res.body)['server']
-        self.assertEqual('serv', server['adminPass'][:4])
         self.assertEqual(16, len(server['adminPass']))
         self.assertEqual('server_test', server['name'])
         self.assertEqual(1, server['id'])
@@ -1426,7 +1424,7 @@ class TestServerInstanceCreation(test.TestCase):
         self.assertEquals(response.status_int, 200)
         response = json.loads(response.body)
         self.assertTrue('adminPass' in response['server'])
-        self.assertTrue(response['server']['adminPass'].startswith('fake'))
+        self.assertEqual(16, len(response['server']['adminPass']))
 
     def test_create_instance_admin_pass_xml(self):
         request, response, dummy = \
@@ -1435,7 +1433,7 @@ class TestServerInstanceCreation(test.TestCase):
         dom = minidom.parseString(response.body)
         server = dom.childNodes[0]
         self.assertEquals(server.nodeName, 'server')
-        self.assertTrue(server.getAttribute('adminPass').startswith('fake'))
+        self.assertEqual(16, len(server.getAttribute('adminPass')))
 
 
 class TestGetKernelRamdiskFromImage(test.TestCase):