1 files changed, 2 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 8a3bf67..8fa7966 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,7 +8,8 @@ tox_pip_extensions_ext_venv_update = true
 deps =
 	setuptools>=31.0.1
 commands =
-	pytest {posargs}
+	!py27: pytest --black {posargs}
+	py27: pytest {posargs}
 usedevelop = True
 extras = testing