diff --git a/tox.ini b/tox.ini
index f6c4e4c89bcfd0e6291cb6f646eab70ee71fbb9a..528566fcb01fae119b1661a5f598ade8bc87f970 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,11 +13,13 @@ commands =
     poetry run python manage.py yarn install
     poetry run python manage.py collectstatic --no-input --clear
     poetry run pytest --cov=biscuit {posargs} biscuit/core/
-passenv =
-    TEST_SCREENSHOT_PATH
-    TEST_SELENIUM_HUB
-    TEST_SELENIUM_BROWSERS
-    TEST_HOST
+
+[testenv:selenium]
+setenv =
+    TEST_SCREENSHOT_PATH = {env:TEST_SCREENSHOT_PATH:.tox/screenshots}
+    TEST_SELENIUM_HUB = {env:TEST_SELENIUM_HUB:http://127.0.0.1:4444/wd/hub}
+    TEST_SELENIUM_BROWSERS = {env:TEST_SELENIUM_BROWSERS:chrome,firefox}
+    TEST_HOST = {env:TEST_HOST:172.17.0.1}
 
 [testenv:lint]
 commands =