diff --git a/oslo/config/generator.py b/oslo/config/generator.py
index 57c70bde..b94df671 100644
--- a/oslo/config/generator.py
+++ b/oslo/config/generator.py
@@ -109,7 +109,7 @@ import sys
 import textwrap
 
 from oslo.config import cfg
-import stevedore.named
+import stevedore.named  # noqa
 
 LOG = logging.getLogger(__name__)
 
diff --git a/tests/test_cfg.py b/tests/test_cfg.py
index 268565fb..9e983919 100644
--- a/tests/test_cfg.py
+++ b/tests/test_cfg.py
@@ -22,12 +22,12 @@ import tempfile
 
 import fixtures
 import mock
+from oslotest import base
 import six
 from six import moves
 import testscenarios
 
 from oslo.config import cfg
-from oslotest import base
 
 load_tests = testscenarios.load_tests_apply_scenarios
 
diff --git a/tox.ini b/tox.ini
index 52c13ccf..ce20147a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -24,6 +24,5 @@ commands = python setup.py build_sphinx
 
 [flake8]
 show-source = True
-ignore = H305
 exclude = .tox,dist,doc,*.egg,build
 builtins = _