diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 76c74173c5..2fa31bad0a 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -544,7 +544,6 @@ static int mkv_write_tracks(AVFormatContext *s)
         put_ebml_uint (pb, MATROSKA_ID_TRACKNUMBER     , i + 1);
         put_ebml_uint (pb, MATROSKA_ID_TRACKUID        , i + 1);
         put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0);    // no lacing (yet)
-        put_ebml_float(pb, MATROSKA_ID_TRACKTIMECODESCALE, 1.0);
 
         if ((tag = av_metadata_get(st->metadata, "title", NULL, 0)))
             put_ebml_string(pb, MATROSKA_ID_TRACKNAME, tag->value);