diff --git a/lib/bcoin/ec.js b/lib/bcoin/ec.js
index 0800b7b1..e6f99de7 100644
--- a/lib/bcoin/ec.js
+++ b/lib/bcoin/ec.js
@@ -103,7 +103,7 @@ ec.random = function random(size) {
  */
 
 ec.rand = function rand(min, max) {
-  return (ec.random(1)[0] / 256 | 0) * (max - min) + min;
+  return Math.floor((ec.random(1)[0] / 256) * (max - min) + min);
 };
 
 /**