diff --git a/libavcodec/libx265.c b/libavcodec/libx265.c
index 784b51c52d..4456e300f2 100644
--- a/libavcodec/libx265.c
+++ b/libavcodec/libx265.c
@@ -294,7 +294,7 @@ static int libx265_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     for (i = 0; i < nnal; i++)
         payload += nal[i].sizeBytes;
 
-    ret = ff_alloc_packet(pkt, payload);
+    ret = ff_alloc_packet2(avctx, pkt, payload, payload);
     if (ret < 0) {
         av_log(avctx, AV_LOG_ERROR, "Error getting output packet.\n");
         return ret;