diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 554367b32f..1e3cdc46a7 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -680,7 +680,7 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
     s->hybrid_bitrate =   s->frame_flags & WV_HYBRID_BITRATE;
     s->post_shift     = bpp * 8 - orig_bpp + ((s->frame_flags >> 13) & 0x1f);
     s->hybrid_maxclip =  ((1LL << (orig_bpp - 1)) - 1);
-    s->hybrid_minclip = ((-1LL << (orig_bpp - 1)));
+    s->hybrid_minclip = ((-1UL << (orig_bpp - 1)));
     s->CRC            = bytestream2_get_le32(&gb);
 
     // parse metadata blocks