diff --git a/libavformat/utils.c b/libavformat/utils.c
index 3267e52846..c1f1362c1a 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -284,7 +284,7 @@ int ffio_limit(AVIOContext *s, int size)
  */
 static int append_packet_chunked(AVIOContext *s, AVPacket *pkt, int size)
 {
-    int orig_pos       = pkt->pos; // av_grow_packet might reset pos
+    int64_t orig_pos   = pkt->pos; // av_grow_packet might reset pos
     int orig_size      = pkt->size;
     int ret;