diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index d0a02c0f5d..d3256d8f5d 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -1400,7 +1400,6 @@ static int mkv_write_chapters(AVFormatContext *s)
     editionentry = start_ebml_master(dyn_cp, MATROSKA_ID_EDITIONENTRY, 0);
     if (mkv->mode != MODE_WEBM) {
         put_ebml_uint(dyn_cp, MATROSKA_ID_EDITIONFLAGDEFAULT, 1);
-        put_ebml_uint(dyn_cp, MATROSKA_ID_EDITIONFLAGHIDDEN , 0);
     }
     for (i = 0; i < s->nb_chapters; i++) {
         ebml_master chapteratom, chapterdisplay;
@@ -1420,10 +1419,6 @@ static int mkv_write_chapters(AVFormatContext *s)
                       (uint32_t)c->id + (uint64_t)mkv->chapter_id_offset);
         put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMESTART, chapterstart);
         put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERTIMEEND, chapterend);
-        if (mkv->mode != MODE_WEBM) {
-            put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERFLAGHIDDEN , 0);
-            put_ebml_uint(dyn_cp, MATROSKA_ID_CHAPTERFLAGENABLED, 1);
-        }
         if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {
             chapterdisplay = start_ebml_master(dyn_cp, MATROSKA_ID_CHAPTERDISPLAY, 0);
             put_ebml_string(dyn_cp, MATROSKA_ID_CHAPSTRING, t->value);