diff --git a/libavcodec/alac.c b/libavcodec/alac.c
index 782d461b22..c606f2af0e 100644
--- a/libavcodec/alac.c
+++ b/libavcodec/alac.c
@@ -222,7 +222,7 @@ static void lpc_prediction(int32_t *error_buffer, uint32_t *buffer_out,
         /* adapt LPC coefficients */
         error_sign = sign_only(error_val);
         if (error_sign) {
-            for (j = 0; j < lpc_order && (int)error_val * error_sign > 0; j++) {
+            for (j = 0; j < lpc_order && (int)(error_val * error_sign) > 0; j++) {
                 int sign;
                 val  = d - pred[j];
                 sign = sign_only(val) * error_sign;