diff --git a/celt/laplace.c b/celt/laplace.c
index 53673130..30f2aab1 100644
--- a/celt/laplace.c
+++ b/celt/laplace.c
@@ -40,11 +40,12 @@
     direction). */
 #define LAPLACE_NMIN (16)
 
+/* When called, decay is positive and at most 11456. */
 static unsigned ec_laplace_get_freq1(unsigned fs0, int decay)
 {
    unsigned ft;
    ft = 32768 - LAPLACE_MINP*(2*LAPLACE_NMIN) - fs0;
-   return ft*(16384-decay)>>15;
+   return ft*(opus_int32)(16384-decay)>>15;
 }
 
 void ec_laplace_encode(ec_enc *enc, int *value, unsigned fs, int decay)