diff --git a/tox.ini b/tox.ini
index c633e27f..02edefaf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,3 +9,9 @@ extras =
   twisted
 commands =
   python -W once -m testtools.run testtools.tests.test_suite {posargs}
+
+[testenv:ruff]
+deps =
+  ruff
+commands =
+  ruff check . {posargs}