diff --git a/keystoneclient/tests/v2_0/test_certificates.py b/keystoneclient/tests/v2_0/test_certificates.py
index 8fe6a4ed6..432a304fb 100644
--- a/keystoneclient/tests/v2_0/test_certificates.py
+++ b/keystoneclient/tests/v2_0/test_certificates.py
@@ -37,4 +37,4 @@ class CertificateTests(utils.TestCase, testresources.ResourcedTestCase):
 
 
 def load_tests(loader, tests, pattern):
-    return testresources.OptimisingTestSuite(tests)
\ No newline at end of file
+    return testresources.OptimisingTestSuite(tests)
diff --git a/keystoneclient/v2_0/certificates.py b/keystoneclient/v2_0/certificates.py
index 929e9734d..b8d2573f0 100644
--- a/keystoneclient/v2_0/certificates.py
+++ b/keystoneclient/v2_0/certificates.py
@@ -39,4 +39,4 @@ class CertificatesManager(object):
 
         resp, body = self._client.get('/certificates/signing',
                                       authenticated=False)
-        return resp.text
\ No newline at end of file
+        return resp.text
diff --git a/tox.ini b/tox.ini
index f37618b2c..b3e1d5d25 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,8 +35,8 @@ commands = oslo_debug_helper -t keystoneclient/tests {posargs}
 # H304: no relative imports
 # H405: multi line docstring summary not separated with an empty line
 # E122: continuation line missing indentation or outdented
-# New from hacking 0.10: H238,W292
-ignore = F821,H238,H304,H405,E122,W292
+# New from hacking 0.10: H238
+ignore = F821,H238,H304,H405,E122
 show-source = True
 exclude = .venv,.tox,dist,doc,*egg,build,*openstack/common*