diff --git a/tox.ini b/tox.ini
index 6a2faea..17d8a6c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,6 +10,7 @@ setenv =
   DJANGO_SETTINGS_MODULE=passerelle.settings
   PASSERELLE_SETTINGS_FILE=tests/settings.py
   DB_ENGINE=django.db.backends.postgresql_psycopg2
+  SETUPTOOLS_USE_DISTUTILS=stdlib
   coverage: COVERAGE=--cov-report xml --cov-report html --cov=passerelle_montpellier_sig/
   junit: JUNIT=--junitxml=junit-{envname}.xml
 deps =