1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 3dfb982bf..bfba8ec0c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,6 +5,7 @@ envlist = py27,py3
 
 [testenv]
 usedevelop=True
+passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 deps = -rrequirements.txt
 commands = /bin/bash ./run_tests.sh
 whitelist_externals = /bin/bash