diff --git a/tox.ini b/tox.ini
index a96df59..3d4eef7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,6 +7,7 @@ usedevelop = True
 setenv =
   DJANGO_SETTINGS_MODULE=passerelle.settings
   PASSERELLE_SETTINGS_FILE=tests/settings.py
+  SETUPTOOLS_USE_DISTUTILS=stdlib
 deps =
   django111: django>=1.11,<1.12
   git+http://git.entrouvert.org/passerelle.git