diff --git a/neutron/tests/unit/db/firewall/test_db_firewall.py b/neutron/tests/unit/db/firewall/test_db_firewall.py
index e5b8b3e2e..052f95a7e 100644
--- a/neutron/tests/unit/db/firewall/test_db_firewall.py
+++ b/neutron/tests/unit/db/firewall/test_db_firewall.py
@@ -12,7 +12,8 @@
 #  Unless required by applicable law or agreed to in writing, software
 #  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 #  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#  License for the spec
+#  License for the specific language governing permissions and limitations
+#  under the License.
 #
 # @author: Sumit Naiksatam, sumitnaiksatam@gmail.com, Big Switch Networks, Inc.
 
diff --git a/neutron/tests/unit/services/firewall/test_fwaas_plugin.py b/neutron/tests/unit/services/firewall/test_fwaas_plugin.py
index eda0e56de..4d0f53383 100644
--- a/neutron/tests/unit/services/firewall/test_fwaas_plugin.py
+++ b/neutron/tests/unit/services/firewall/test_fwaas_plugin.py
@@ -12,7 +12,8 @@
 #  Unless required by applicable law or agreed to in writing, software
 #  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 #  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#  License for the spec
+#  License for the specific language governing permissions and limitations
+#  under the License.
 #
 # @author: Sumit Naiksatam, sumitnaiksatam@gmail.com, Big Switch Networks, Inc.
 
diff --git a/tox.ini b/tox.ini
index c87903eb8..cfd19a5ba 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,10 +33,11 @@ commands = {posargs}
 # E711/E712 comparison to False should be 'if cond is False:' or 'if not cond:'
 #        query = query.filter(Component.disabled == False)
 # E125 continuation line does not distinguish itself from next logical line
+# H233  Python 3.x incompatible use of print operator
 # H301 one import per line
 # H302 import only modules
 # TODO(marun) H404 multi line docstring should start with a summary
-ignore = E711,E712,E125,H301,H302,H404
+ignore = E711,E712,E125,H233,H301,H302,H404
 show-source = true
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,tools