diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 89072d5ded..7ae6c45628 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -2078,7 +2078,10 @@ static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
         mov_write_string_metadata(s, pb_buf, "\251alb", "album"      , 0);
         mov_write_string_metadata(s, pb_buf, "\251day", "date"       , 0);
         mov_write_string_metadata(s, pb_buf, "\251swr", "encoder"    , 0);
+        // currently ignored by mov.c
         mov_write_string_metadata(s, pb_buf, "\251des", "comment"    , 0);
+        // add support for libquicktime, this atom is also actually read by mov.c
+        mov_write_string_metadata(s, pb_buf, "\251cmt", "comment"    , 0);
         mov_write_string_metadata(s, pb_buf, "\251gen", "genre"      , 0);
         mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright"  , 0);
     } else {