diff --git a/lib/crypto/random.js b/lib/crypto/random.js
index 910b2ee1..ea1af3b8 100644
--- a/lib/crypto/random.js
+++ b/lib/crypto/random.js
@@ -48,7 +48,7 @@ if (crypto) {
       var i;
 
       for (i = 0; i < data.length; i++)
-        data[i] = ((Math.random() * 0x100000000) >>> 0) % 256;
+        data[i] = Math.floor(Math.random() * 256);
 
       return data;
     };