diff --git a/TextTrackType.js b/TextTrackType.js
new file mode 100644
index 00000000..caff65a9
--- /dev/null
+++ b/TextTrackType.js
@@ -0,0 +1,7 @@
+import keyMirror from 'keymirror';
+
+export default {
+  SRT: 'application/x-subrip',
+  TTML: 'application/ttml+xml',
+  VTT: 'text/vtt'
+};