diff --git a/libavcodec/vb.c b/libavcodec/vb.c
index f4f2ee1bfc5767b05f644845df48c91a7a4dca5f..155ccebbc447aaf34966fa9af14b8b63423c25dd 100644
--- a/libavcodec/vb.c
+++ b/libavcodec/vb.c
@@ -272,8 +272,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
     c->frame      = av_mallocz(avctx->width * avctx->height);
     c->prev_frame = av_mallocz(avctx->width * avctx->height);
 
-    memset(c->pal, 0, sizeof(c->pal));
-
     return 0;
 }