diff --git a/lib/crypto/random.js b/lib/crypto/random.js
index e413470..f369685 100644
--- a/lib/crypto/random.js
+++ b/lib/crypto/random.js
@@ -14,7 +14,7 @@ Random.getRandomBuffer = function(size) {
 Random.getRandomBufferNode = function(size) {
   var crypto = require('crypto');
   return crypto.randomBytes(size);
-}
+};
 
 Random.getRandomBufferBrowser = function(size) {
   if (!window.crypto && !window.msCrypto)
@@ -38,11 +38,12 @@ Random.getRandomBufferBrowser = function(size) {
 Random.getPseudoRandomBuffer = function(size) {
   var b32 = 0x100000000;
   var b = new Buffer(size);
+  var r;
 
   for (var i = 0; i <= size; i++) {
     var j = Math.floor(i / 4);
     var k = i - j * 4;
-    if (k == 0) {
+    if (k === 0) {
       r = Math.random() * b32;
       b[i] = r & 0xff;
     } else {
diff --git a/test/crypto/random.js b/test/crypto/random.js
index be715ba..e92afcc 100644
--- a/test/crypto/random.js
+++ b/test/crypto/random.js
@@ -1,5 +1,8 @@
+'use strict';
+
 var should = require('chai').should();
-var Random = require('../lib/random');
+var bitcore = require('../..');
+var Random = bitcore.Random;
 
 describe('Random', function() {
 
@@ -21,7 +24,7 @@ describe('Random', function() {
       var hexs = [];
       for (var i = 0; i < 100; i++)
         hexs[i] = Random.getRandomBuffer(8).toString('hex');
-      for (var i = 0; i < 100; i++)
+      for (i = 0; i < 100; i++)
         for (var j = i + 1; j < 100; j++)
           hexs[i].should.not.equal(hexs[j]);
     });