diff --git a/tests/test_os.py b/tests/test_os.py
index 5672a9a..d93bb79 100644
--- a/tests/test_os.py
+++ b/tests/test_os.py
@@ -21,9 +21,7 @@ async def test_stat():
     assert stat_res.st_size == 10
 
 
-@pytest.mark.skipif(
-    platform.system() == "Windows", reason="No statvfs on Windows"
-)
+@pytest.mark.skipif(platform.system() == "Windows", reason="No statvfs on Windows")
 @pytest.mark.asyncio
 async def test_statvfs():
     """Test the statvfs call."""