diff --git a/test/test_mediafile.py b/test/test_mediafile.py
index 1bb30f560..29f1efa9f 100644
--- a/test/test_mediafile.py
+++ b/test/test_mediafile.py
@@ -901,6 +901,7 @@ class AIFFTest(ReadWriteTestBase, unittest.TestCase):
         'channels': 1,
     }
 
+
 try:
     import mutagen.dsf
 except:
@@ -908,6 +909,7 @@ except:
 else:
     HAVE_DSF = True
 
+
 @unittest.skipIf(not HAVE_DSF, "mutagen < 1.37")
 class DSFTest(ReadWriteTestBase,
               ExtendedImageStructureTestMixin, unittest.TestCase):