diff --git a/libavformat/utils.c b/libavformat/utils.c
index 5b17c64b90..1f99daa42b 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1617,7 +1617,7 @@ static void av_estimate_timings(AVFormatContext *ic)
     }
     ic->file_size = file_size;
 
-    if (ic->iformat == &mpegps_demux && file_size && !ic->pb.is_streamed) {
+    if ((ic->iformat == &mpegps_demux || ic->iformat == &mpegts_demux) && file_size && !ic->pb.is_streamed) {
         /* get accurate estimate from the PTSes */
         av_estimate_timings_from_pts(ic);
     } else if (av_has_timings(ic)) {