diff --git a/libavcodec/dvdec.c b/libavcodec/dvdec.c
index ffa9c6d818..8a21267eca 100644
--- a/libavcodec/dvdec.c
+++ b/libavcodec/dvdec.c
@@ -313,7 +313,7 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
                                  void *data, int *data_size,
                                  AVPacket *avpkt)
 {
-    const uint8_t *buf = avpkt->data;
+    uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     DVVideoContext *s = avctx->priv_data;
     const uint8_t* vsc_pack;