diff --git a/tracks.go b/tracks.go
index c57401b5..b18af454 100644
--- a/tracks.go
+++ b/tracks.go
@@ -25,7 +25,7 @@ func ReadTracks(byts []byte) (Tracks, error) {
 	for i, md := range sd.MediaDescriptions {
 		t, err := newTrackFromMediaDescription(md)
 		if err != nil {
-			return nil, fmt.Errorf("unable to parse track %d: %s", i, err)
+			return nil, fmt.Errorf("unable to parse track %d: %s", i+1, err)
 		}
 
 		tracks[i] = t
diff --git a/tracks_test.go b/tracks_test.go
index 78931656..ecfd0882 100644
--- a/tracks_test.go
+++ b/tracks_test.go
@@ -31,7 +31,7 @@ func TestTracksReadErrors(t *testing.T) {
 				"a=rtpmap:97 mpeg4-generic/44100/2\r\n" +
 				"a=fmtp:97 profile-level-id=1;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=zzz1210\r\n" +
 				"a=control:streamid=1\r\n"),
-			"unable to parse track 1: invalid AAC config (zzz1210)",
+			"unable to parse track 2: invalid AAC config (zzz1210)",
 		},
 	} {
 		t.Run(ca.name, func(t *testing.T) {