diff --git a/monasca_log_api_tempest/services/log_api_v2_client.py b/monasca_log_api_tempest/services/log_api_v2_client.py
index a5414200..0c441aa5 100644
--- a/monasca_log_api_tempest/services/log_api_v2_client.py
+++ b/monasca_log_api_tempest/services/log_api_v2_client.py
@@ -13,11 +13,8 @@
 # under the License.
 
 from oslo_serialization import jsonutils as json
-from tempest import config
 from tempest.lib.common import rest_client
 
-CONF = config.CONF
-
 
 class LogApiV2Client(rest_client.RestClient):
 
diff --git a/monasca_log_api_tempest/services/log_api_v3_client.py b/monasca_log_api_tempest/services/log_api_v3_client.py
index 94f6895b..df1bf06f 100644
--- a/monasca_log_api_tempest/services/log_api_v3_client.py
+++ b/monasca_log_api_tempest/services/log_api_v3_client.py
@@ -13,11 +13,8 @@
 # under the License.
 
 from oslo_serialization import jsonutils as json
-from tempest import config
 from tempest.lib.common import rest_client
 
-CONF = config.CONF
-
 
 class LogApiV3Client(rest_client.RestClient):
 
@@ -47,4 +44,4 @@ class LogApiV3Client(rest_client.RestClient):
         return resp, body
 
     def custom_request(self, method, headers=None, body=None):
-        self.request(method=method, url=LogApiV3Client._uri, headers=headers, body=body)
\ No newline at end of file
+        self.request(method=method, url=LogApiV3Client._uri, headers=headers, body=body)