diff --git a/Tests/test_file_png.py b/Tests/test_file_png.py
index 9b6a4c5e6..3c285b077 100644
--- a/Tests/test_file_png.py
+++ b/Tests/test_file_png.py
@@ -777,7 +777,7 @@ class TestFilePng:
             mystdout = mystdout.buffer
         with Image.open(mystdout) as reloaded:
             assert_image_equal_tofile(reloaded, TEST_PNG_FILE)
-    
+
     def test_end_truncated_file(self):
         ImageFile.LOAD_TRUNCATED_IMAGES = True
         try:
@@ -787,7 +787,6 @@ class TestFilePng:
             ImageFile.LOAD_TRUNCATED_IMAGES = False
 
 
-
 @pytest.mark.skipif(is_win32(), reason="Requires Unix or macOS")
 @skip_unless_feature("zlib")
 class TestTruncatedPngPLeaks(PillowLeakTestCase):