diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c
index 70906c8028..d2aa235c72 100644
--- a/libavcodec/adpcm.c
+++ b/libavcodec/adpcm.c
@@ -392,7 +392,7 @@ static int xa_decode(AVCodecContext *avctx, int16_t *out0, int16_t *out1,
             d = in[16+i+j*4];
 
             t = sign_extend(d, 4);
-            s = ( t<<shift ) + ((s_1*f0 + s_2*f1+32)>>6);
+            s = t*(1<<shift) + ((s_1*f0 + s_2*f1+32)>>6);
             s_2 = s_1;
             s_1 = av_clip_int16(s);
             out0[j] = s_1;
@@ -419,7 +419,7 @@ static int xa_decode(AVCodecContext *avctx, int16_t *out0, int16_t *out1,
             d = in[16+i+j*4];
 
             t = sign_extend(d >> 4, 4);
-            s = ( t<<shift ) + ((s_1*f0 + s_2*f1+32)>>6);
+            s = t*(1<<shift) + ((s_1*f0 + s_2*f1+32)>>6);
             s_2 = s_1;
             s_1 = av_clip_int16(s);
             out1[j] = s_1;