diff --git a/tox.ini b/tox.ini
index d940e4f3e..7273001c8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,6 +15,7 @@ commands =
     /bin/rm -f .testrepository/times.dbm
     python setup.py testr --slowest --testr-args='{posargs}'
     oslo-config-generator --config-file=etc/vitrage/vitrage-config-generator.conf
+passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 
 [testenv:pep8]
 commands = flake8