diff --git a/venus_tempest_plugin/tests/api/base.py b/venus_tempest_plugin/tests/api/base.py
index 3aac920..51b400b 100644
--- a/venus_tempest_plugin/tests/api/base.py
+++ b/venus_tempest_plugin/tests/api/base.py
@@ -39,9 +39,8 @@ class BaseAPITest(test.BaseTestCase):
             'identity_admin')
         auth_prov = get_auth_provider(credentials=credentials)
         cls.os_admin.venus_client = (
-            client.VenusRestClient(auth_prov,
-                                    'accelerator',
-                                    CONF.identity.region))
+            client.VenusRestClient(auth_prov, 'accelerator',
+                                   CONF.identity.region))
 
     @classmethod
     def setup_credentials(cls):
diff --git a/venus_tempest_plugin/tests/scenario/manager.py b/venus_tempest_plugin/tests/scenario/manager.py
index 5307ef6..a467869 100644
--- a/venus_tempest_plugin/tests/scenario/manager.py
+++ b/venus_tempest_plugin/tests/scenario/manager.py
@@ -72,9 +72,8 @@ class ScenarioTest(tempest.test.BaseTestCase):
 
         auth_prov = get_auth_provider(credentials)
         cls.os_admin.venus_client = (
-            clients.VenusRestClient(auth_prov,
-                                     'accelerator',
-                                     CONF.identity.region))
+            clients.VenusRestClient(auth_prov, 'accelerator',
+                                    CONF.identity.region))
 
     # ## Test functions library
     #