diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index b0fdbac..ec2192f 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -246,8 +246,8 @@
             name = data_utils.rand_name(cls.__name__ + "-Server-Group")
         if policy is None:
             policy = ['affinity']
-        body = (cls.server_groups_client.create_server_group(name, policy)
-                ['server_group'])
+        body = cls.server_groups_client.create_server_group(
+            name=name, policies=policy)['server_group']
         cls.server_groups.append(body['id'])
         return body