tox--

tox.ini

diff --git a/tox.ini b/tox.ini
index b37a773..2fa9214 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,6 +6,7 @@
 [testenv]
 install_command = pip install --use-wheel {opts} {packages}
 deps = -rrequirements-dev.txt
+passenv = HOME HOMEPATH LANG
 commands =
     coverage erase
     coverage run -m pytest {posargs:tests}