diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index b466ba7531..c85b76a3c7 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -8206,6 +8206,9 @@ static int mov_init(AVFormatContext *s)
         !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist)
         av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n");
 
+    if (mov->flags & FF_MOV_FLAG_CMAF && mov->use_editlist)
+        mov->flags &= ~FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS;
+
     if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO &&
         !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS))
         s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO;