diff --git a/tox.ini b/tox.ini
index 2c84211..83f780d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,5 +26,5 @@ deps =
     flake8
 commands =
     isort --check .
-    black --check --exclude /venv/ --exclude .* .
+    black --check --exclude='/(\..*|venv)/'   .
     flake8 .
\ No newline at end of file