diff --git a/libmpdemux/demux_lavf.c b/libmpdemux/demux_lavf.c
index 868b100b68..e4798539d3 100644
--- a/libmpdemux/demux_lavf.c
+++ b/libmpdemux/demux_lavf.c
@@ -183,6 +183,7 @@ static const char *preferred_list[] = {
     "mov,mp4,m4a,3gp,3g2,mj2",
     "mpc",
     "mpc8",
+    "matroska",
     NULL
 };