diff --git a/jsdom.js b/jsdom.js
index f1ec7fb..207505b 100644
--- a/jsdom.js
+++ b/jsdom.js
@@ -3,9 +3,9 @@ import { prop_process } from './src/dom-common.js';
 const { setDeleteAttr }= prop_process;
 /** @param {HTMLElement} obj */
 prop_process.setDeleteAttr= function(obj, prop, value){
-	if("checked"!==prop) return setDeleteAttr(obj, prop, value);
-	if(value) return obj.setAttribute("checked", "");
-	obj.removeAttribute("checked");
+	if("checked"!==prop && "disabled"!==prop) return setDeleteAttr(obj, prop, value);
+	if(value) return obj.setAttribute(prop, "");
+	obj.removeAttribute(prop);
 };
 const keys= [ "HTMLElement", "SVGElement", "DocumentFragment", "MutationObserver", "document" ];
 let dom_last;