diff --git a/contrib/rackspace/rackspace/tests/test_cloud_loadbalancer.py b/contrib/rackspace/rackspace/tests/test_cloud_loadbalancer.py
index 7f89fa668..002122600 100644
--- a/contrib/rackspace/rackspace/tests/test_cloud_loadbalancer.py
+++ b/contrib/rackspace/rackspace/tests/test_cloud_loadbalancer.py
@@ -411,8 +411,8 @@ class LoadBalancerTest(common.HeatTestCase):
                                       metadata={'yolo': 'heeyyy_gurl'})
 
         expected = self._set_expected(self.expected_body,
-                                      sessionPersistence=
-                                      {'persistenceType': 'HTTP_COOKIE'},
+                                      sessionPersistence={
+                                          'persistenceType': 'HTTP_COOKIE'},
                                       connectionLogging={'enabled': True},
                                       metadata=[
                                           {'key': 'yolo',
diff --git a/heat/engine/parameters.py b/heat/engine/parameters.py
index 6cb147e4a..944fb46e8 100644
--- a/heat/engine/parameters.py
+++ b/heat/engine/parameters.py
@@ -536,12 +536,12 @@ class Parameters(collections.Mapping):
             yield Parameter(self.PARAM_REGION,
                             Schema(Schema.STRING,
                                    default='ap-southeast-1',
-                                   constraints=
-                                   [constr.AllowedValues(['us-east-1',
-                                                          'us-west-1',
-                                                          'us-west-2',
-                                                          'sa-east-1',
-                                                          'eu-west-1',
-                                                          'ap-southeast-1',
-                                                          'ap-northeast-1']
-                                                         )]))
+                                   constraints=[
+                                       constr.AllowedValues(['us-east-1',
+                                                             'us-west-1',
+                                                             'us-west-2',
+                                                             'sa-east-1',
+                                                             'eu-west-1',
+                                                             'ap-southeast-1',
+                                                             'ap-northeast-1']
+                                                            )]))
diff --git a/tox.ini b/tox.ini
index c5200d10f..dd8b407d4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -52,7 +52,6 @@ commands = python setup.py build_sphinx
 commands = oslo-config-generator --config-file=config-generator.conf
 
 [flake8]
-# E251 unexpected spaces around keyword / parameter equals
 # H202 assertRaises Exception too broad
 # H233 Python 3.x incompatible use of print operator
 # H305 imports not grouped correctly
@@ -62,7 +61,7 @@ commands = oslo-config-generator --config-file=config-generator.conf
 # H405 multi line docstring summary not separated with an empty line
 # H803 no full stop at the end of the commit message
 # H904 Wrap long lines in parentheses instead of a backslash
-ignore = E251,H202,H233,H305,H307,H402,H404,H405,H803,H904
+ignore = H202,H233,H305,H307,H402,H404,H405,H803,H904
 show-source = true
 exclude=.venv,.git,.tox,dist,*openstack/common*,*lib/python*,*egg,tools,build
 max-complexity=20