diff --git a/lib/widgets.js b/lib/widgets.js
index 4294642..bd30a2b 100644
--- a/lib/widgets.js
+++ b/lib/widgets.js
@@ -4,18 +4,18 @@
 var is = require('is');
 var tag = require('./tag');
 
-var dataRegExp = /^data-[a-z]+([-][a-z]+)*$/,
-    ariaRegExp = /^aria-[a-z]+$/,
-    legalAttrs = ['autocomplete', 'autocorrect', 'autofocus', 'autosuggest', 'checked', 'dirname', 'disabled', 'tabindex', 'list', 'max', 'maxlength', 'min', 'multiple', 'novalidate', 'pattern', 'placeholder', 'readonly', 'required', 'size', 'step'],
-    ignoreAttrs = ['id', 'name', 'class', 'classes', 'type', 'value'],
-    getUserAttrs = function (opt) {
-    	return Object.keys(opt).reduce(function (attrs, k) {
-    		if ((ignoreAttrs.indexOf(k) === -1 && legalAttrs.indexOf(k) > -1) || dataRegExp.test(k) || ariaRegExp.test(k)) {
-    			attrs[k] = opt[k];
-    		}
-    		return attrs;
-    	}, {});
-    };
+var dataRegExp = /^data-[a-z]+([-][a-z]+)*$/;
+var ariaRegExp = /^aria-[a-z]+$/;
+var legalAttrs = ['autocomplete', 'autocorrect', 'autofocus', 'autosuggest', 'checked', 'dirname', 'disabled', 'tabindex', 'list', 'max', 'maxlength', 'min', 'multiple', 'novalidate', 'pattern', 'placeholder', 'readonly', 'required', 'size', 'step'];
+var ignoreAttrs = ['id', 'name', 'class', 'classes', 'type', 'value'];
+var getUserAttrs = function (opt) {
+    return Object.keys(opt).reduce(function (attrs, k) {
+        if ((ignoreAttrs.indexOf(k) === -1 && legalAttrs.indexOf(k) > -1) || dataRegExp.test(k) || ariaRegExp.test(k)) {
+            attrs[k] = opt[k];
+        }
+        return attrs;
+    }, {});
+};
 
 // used to generate different input elements varying only by type attribute
 var input = function (type) {