diff --git a/libavformat/utils.c b/libavformat/utils.c
index b3d902c6b5..667249362c 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1359,7 +1359,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
             if (st->last_IP_duration == 0 && (uint64_t)pkt->duration <= INT32_MAX)
                 st->last_IP_duration = pkt->duration;
             if (pkt->dts != AV_NOPTS_VALUE)
-                st->cur_dts = pkt->dts + st->last_IP_duration;
+                st->cur_dts = av_sat_add64(pkt->dts, st->last_IP_duration);
             if (pkt->dts != AV_NOPTS_VALUE &&
                 pkt->pts == AV_NOPTS_VALUE &&
                 st->last_IP_duration > 0 &&