diff --git a/src/test/test_mediainfo_frame_class.py b/src/test/test_mediainfo_frame_class.py
index d0e99d1..68b9398 100644
--- a/src/test/test_mediainfo_frame_class.py
+++ b/src/test/test_mediainfo_frame_class.py
@@ -38,7 +38,7 @@ def test_frame_class_detection(test_case):
 
     extractor.video_tracks = [mock_track]
     extractor.extract_resolution.return_value = (height, width)
-    # extractor._video_tracks.return_value = [mock_track]
+    extractor._video_tracks.return_value = [mock_track]
     extractor.extract_interlaced.return_value = interlaced
 
     # Test the method