diff --git a/tox.ini b/tox.ini
index aabac63..da3f5cf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,4 +15,4 @@
 
 [testenv:pep8]
 deps = pep8==1.3.3
-commands = python tools/hacking.py --ignore=N401,N402,E122,E125,E126 --repeat --show-source --exclude=.venv,.tox,dist,doc,openstack,*egg .
+commands = python tools/hacking.py --ignore=T401,T402,E122,E125,E126 --repeat --show-source --exclude=.venv,.tox,dist,doc,openstack,*egg .