diff --git a/tests/test_api.py b/tests/test_api.py
index 71ec6b4..69934b1 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -111,7 +111,7 @@ def test_saveImage_multipage(tmpdir, script, imageType, expectedFilenames):
     assert expectedFilenames == [p.name for p in sorted(tmpdir.glob(glob_pattern))]
 
 
-@pytest.mark.skipif(sys.platform == ""darwin"", reason="currently broken on macOS")
+@pytest.mark.skipif(sys.platform == "darwin", reason="currently broken on macOS")
 def test_saveImage_mp4_codec(tmpdir):
     from drawbot_skia import ffmpeg