diff --git a/lib/w3cjs.js b/lib/w3cjs.js
index 936031b..3d96d6f 100644
--- a/lib/w3cjs.js
+++ b/lib/w3cjs.js
@@ -5,8 +5,6 @@ var fs = require('fs');
 
 var w3cCheckUrl = 'http://validator.w3.org/nu/';
 var defaultOutput = 'json';
-var defaultDoctype = null;
-var defaultCharset = null;
 var defaultProxy = null;
 
 var defaultCallback = function (res) {
@@ -20,8 +18,6 @@ function setW3cCheckUrl(newW3cCheckUrl) {
 function validate(options) {
 	var output = options.output || defaultOutput;
 	var callback = options.callback || defaultCallback;
-	var doctype = options.doctype || defaultDoctype;
-	var charset = options.charset || defaultCharset;
 	var file = options.file;
 	var input = options.input;
 	var context = '';