diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index ec3601f994..1a6a259aa5 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -1813,6 +1813,7 @@ static int decode_update_thread_context(AVCodecContext *dst,
         memset(&h->mb, 0, sizeof(h->mb));
         memset(&h->mb_luma_dc, 0, sizeof(h->mb_luma_dc));
         memset(&h->mb_padding, 0, sizeof(h->mb_padding));
+        memset(&h->cur_pic, 0, sizeof(h->cur_pic));
 
         h->avctx             = dst;
         h->DPB               = NULL;