diff --git a/node-nxt.js b/node-nxt.js
index 0b0ea76..e548693 100644
--- a/node-nxt.js
+++ b/node-nxt.js
@@ -1,5 +1,4 @@
-
-var sys = require ('sys'),
+var util = require ('util'),
 	fs = require('fs');
 
 
@@ -40,7 +39,7 @@ function escape (val) {
 
 
 exports.connect = function (path, callback) {
-	new Nxt (path).on ('connect', callback).on ('error', sys.error);
+	new Nxt (path).on ('connect', callback).on ('error', util.error);
 };
 
 
@@ -104,7 +103,7 @@ Nxt.prototype._fire = function (event, params) {
 
 
 Nxt.prototype._onData = function (data) {
-	//sys.print ('DATA: ' + data + '\n');
+	//util.print ('DATA: ' + data + '\n');
 	
 	if (data.substr (0, 1) == '>') return;
 	
@@ -191,8 +190,8 @@ Nxt.prototype.BtFactoryReset = function () {
 
 
 Nxt.prototype.BtGetConnectEntry = function (idx, callback) {
-	var wrap = function (name, class, pin, addr, handle, status, linkq) {
-		return callback (name, parseInt (class, 10), pin, addr, parseInt (handle, 10), parseInt (status, 10), parseInt (linkq, 10));
+	var wrap = function (name, cls, pin, addr, handle, status, linkq) {
+		return callback (name, parseInt (cls, 10), pin, addr, parseInt (handle, 10), parseInt (status, 10), parseInt (linkq, 10));
 	};
 	
 	this._send ('nxt.BtGetConnectEntry (' + escape (idx) + ')', wrap);
@@ -202,8 +201,8 @@ Nxt.prototype.BtGetConnectEntry = function (idx, callback) {
 
 
 Nxt.prototype.BtGetDeviceEntry = function (idx, callback) {
-	var wrap = function (name, class, addr, status) {
-		return callback (name, parseInt (class, 10), addr, parseInt (status, 10));
+	var wrap = function (name, cls, addr, status) {
+		return callback (name, parseInt (cls, 10), addr, parseInt (status, 10));
 	};
 	
 	this._send ('nxt.BtGetDeviceEntry (' + escape (idx) + ')', wrap);