diff --git a/demux/demux_mkv.c b/demux/demux_mkv.c
index 753d783063..07864be195 100644
--- a/demux/demux_mkv.c
+++ b/demux/demux_mkv.c
@@ -236,7 +236,6 @@ const struct m_sub_options demux_mkv_conf = {
         .subtitle_preroll = 2,
         .subtitle_preroll_secs = 1.0,
         .subtitle_preroll_secs_index = 10.0,
-        .probe_start_time = 1,
     },
 };