diff --git a/libavcodec/utvideoenc.c b/libavcodec/utvideoenc.c
index 085c415caa5b558975b205f7fd0726bf51ee44fe..0df3fb75d150fda37899e4deb541abd63bc5b20a 100644
--- a/libavcodec/utvideoenc.c
+++ b/libavcodec/utvideoenc.c
@@ -598,7 +598,6 @@ static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
      * At least currently Ut Video is IDR only.
      * Set flags accordingly.
      */
-    avctx->coded_frame->reference = 0;
     avctx->coded_frame->key_frame = 1;
     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
 
diff --git a/libavcodec/v410enc.c b/libavcodec/v410enc.c
index cc7cef7ea20f8359c235b9bdd8364c5bd79467c4..7bb70fd56a996e6ae98d5467676299bbdf718c85 100644
--- a/libavcodec/v410enc.c
+++ b/libavcodec/v410enc.c
@@ -56,7 +56,6 @@ static int v410_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     }
     dst = pkt->data;
 
-    avctx->coded_frame->reference = 0;
     avctx->coded_frame->key_frame = 1;
     avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;