diff --git a/tox.ini b/tox.ini
index 7c3ff4d..fa8a840 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,6 +17,7 @@ usedevelop=true
 setenv =
   DJANGO_SETTINGS_MODULE=petale.settings
   PETALE_SETTINGS_FILE=tests/settings.py
+  SETUPTOOLS_USE_DISTUTILS=stdlib
 
   JUNIT={tty::-o junit_suite_name={envname} --junit-xml=junit-{envname}.xml}
   COVERAGE={tty::--junitxml=test_{envname}_results.xml --cov-report xml --cov-report html --cov=petale/ --cov-config .coveragerc}