diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 3953cd304e..9c8aea36ff 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1916,7 +1916,7 @@ static int matroska_parse_tracks(AVFormatContext *s)
             track->audio.sub_packet_h    = avio_rb16(&b);
             track->audio.frame_size      = avio_rb16(&b);
             track->audio.sub_packet_size = avio_rb16(&b);
-            if (flavor                       <= 0 ||
+            if (flavor                        < 0 ||
                 track->audio.coded_framesize <= 0 ||
                 track->audio.sub_packet_h    <= 0 ||
                 track->audio.frame_size      <= 0 ||