diff --git a/devine/core/tracks/__init__.py b/devine/core/tracks/__init__.py
index 7bfd4b0..821e8d8 100644
--- a/devine/core/tracks/__init__.py
+++ b/devine/core/tracks/__init__.py
@@ -4,3 +4,5 @@ from .subtitle import Subtitle
 from .track import Track
 from .tracks import Tracks
 from .video import Video
+
+__ALL__ = (Audio, Chapter, Subtitle, Track, Tracks, Video)