--- a/src/xine-engine/buffer_types.c
+++ b/src/xine-engine/buffer_types.c
@@ -586,6 +586,8 @@ static const video_db_t video_db[] = {
 },
 {
   {
+    ME_FOURCC('t','h','e','o'),
+    ME_FOURCC('T','H','E','O'),
     0,
   },
   BUF_VIDEO_THEORA,