diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
index 5d9ad69d2d..fd72de638d 100644
--- a/libavcodec/hevcdec.c
+++ b/libavcodec/hevcdec.c
@@ -3321,6 +3321,8 @@ static av_cold int hevc_decode_free(AVCodecContext *avctx)
 
     ff_h2645_packet_uninit(&s->pkt);
 
+    ff_hevc_reset_sei(&s->sei);
+
     return 0;
 }
 
@@ -3510,6 +3512,7 @@ static void hevc_decode_flush(AVCodecContext *avctx)
 {
     HEVCContext *s = avctx->priv_data;
     ff_hevc_flush_dpb(s);
+    ff_hevc_reset_sei(&s->sei);
     s->max_ra = INT_MAX;
     s->eos = 1;
 }