diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index fa9188debf..d8200d36b8 100644
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -101,7 +101,7 @@ static int encode_nals(AVCodecContext *ctx, AVPacket *pkt,
     for (i = 0; i < nnal; i++)
         size += nals[i].i_payload;
 
-    if ((ret = ff_alloc_packet(pkt, size)) < 0)
+    if ((ret = ff_alloc_packet2(ctx, pkt, size)) < 0)
         return ret;
 
     p = pkt->data;