diff --git a/tox.ini b/tox.ini
index b737cdf5..5e2571e3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,6 +31,5 @@ downloadcache = ~/cache/pip
 show-source = True
 # H302: Do not import objects, only modules
 ignore = H302
-builtins = _
 exclude=.venv,.git,.tox,dist,*openstack/common*,*lib/python*,*egg,build
 max-complexity=20