diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index c21117920b..00f4eaccf3 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -734,13 +734,13 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
             }
             for (i = 0; i < weights; i++) {
                 t = (int8_t)bytestream2_get_byte(&gb);
-                s->decorr[s->terms - i - 1].weightA = t << 3;
+                s->decorr[s->terms - i - 1].weightA = t * (1 << 3);
                 if (s->decorr[s->terms - i - 1].weightA > 0)
                     s->decorr[s->terms - i - 1].weightA +=
                         (s->decorr[s->terms - i - 1].weightA + 64) >> 7;
                 if (s->stereo_in) {
                     t = (int8_t)bytestream2_get_byte(&gb);
-                    s->decorr[s->terms - i - 1].weightB = t << 3;
+                    s->decorr[s->terms - i - 1].weightB = t * (1 << 3);
                     if (s->decorr[s->terms - i - 1].weightB > 0)
                         s->decorr[s->terms - i - 1].weightB +=
                             (s->decorr[s->terms - i - 1].weightB + 64) >> 7;