diff --git a/lib/bn.js b/lib/bn.js
index c70db49..b841a51 100644
--- a/lib/bn.js
+++ b/lib/bn.js
@@ -1,16 +1,16 @@
-var _bnjs = require('bn.js');
+var _BN = require('bn.js');
 
-var bnjs = function bnjs_extended(n) {
-  if (!(this instanceof bnjs_extended)) {
-    return new bnjs(n);
+var BN = function BN_extended(n) {
+  if (!(this instanceof BN_extended)) {
+    return new BN(n);
   }
   arguments[0] = n;
-  return _bnjs.apply(this, arguments);
+  return _BN.apply(this, arguments);
 };
 
-module.exports = bnjs;
+module.exports = BN;
 
-bnjs.prototype = _bnjs.prototype;
+BN.prototype = _BN.prototype;
 
 var reversebuf = function(buf, nbuf) {
   for (var i = 0; i < buf.length; i++) {
@@ -18,13 +18,13 @@ var reversebuf = function(buf, nbuf) {
   }
 };
 
-bnjs.prototype.fromString = function(str) {
-  var bn = bnjs(str);
+BN.prototype.fromString = function(str) {
+  var bn = BN(str);
   bn.copy(this);
   return this;
 };
 
-bnjs.fromBuffer = function(buf, opts) {
+BN.fromBuffer = function(buf, opts) {
   if (typeof opts !== 'undefined' && opts.endian === 'little') {
     var nbuf = new Buffer(buf.length);
     reversebuf(buf, nbuf);
@@ -33,18 +33,18 @@ bnjs.fromBuffer = function(buf, opts) {
   var hex = buf.toString('hex');
   if (hex.length % 2)
     hex = "0" + hex;
-  var bn = new bnjs(hex, 16);
+  var bn = new BN(hex, 16);
   return bn;
 };
 
-bnjs.prototype.fromBuffer = function(buf, opts) {
-  var bn = bnjs.fromBuffer(buf, opts);
+BN.prototype.fromBuffer = function(buf, opts) {
+  var bn = BN.fromBuffer(buf, opts);
   bn.copy(this);
 
   return this;
 };
 
-bnjs.prototype.toBuffer = function(opts) {
+BN.prototype.toBuffer = function(opts) {
   var buf;
   if (opts && opts.size) {
     var hex = this.toString(16);
@@ -87,22 +87,22 @@ bnjs.prototype.toBuffer = function(opts) {
 };
 
 function decorate(name) {
-  bnjs.prototype['_' + name] = _bnjs.prototype[name];
+  BN.prototype['_' + name] = _BN.prototype[name];
   var f = function(b) {
     if (typeof b === 'string')
-      b = new _bnjs(b);
+      b = new _BN(b);
     else if (typeof b === 'number')
-      b = new _bnjs(b.toString());
+      b = new _BN(b.toString());
     return this['_' + name](b);
   };
-  bnjs.prototype[name] = f;
+  BN.prototype[name] = f;
 };
 
-_bnjs.prototype.gt = function(b) {
+_BN.prototype.gt = function(b) {
   return this.cmp(b) > 0;
 };
 
-_bnjs.prototype.lt = function(b) {
+_BN.prototype.lt = function(b) {
   return this.cmp(b) < 0;
 };
 
@@ -115,8 +115,8 @@ decorate('cmp');
 decorate('gt');
 decorate('lt');
 
-bnjs.prototype.toNumber = function() {
+BN.prototype.toNumber = function() {
   return parseInt(this['toString'](10), 10);
 };
 
-module.exports = bnjs;
+module.exports = BN;