diff --git a/ui/jquery.ui.autocomplete.js b/ui/jquery.ui.autocomplete.js
index 1342f76488..e62ea93fe0 100644
--- a/ui/jquery.ui.autocomplete.js
+++ b/ui/jquery.ui.autocomplete.js
@@ -16,6 +16,7 @@
 (function( $, undefined ) {
 
 $.widget( "ui.autocomplete", {
+	defaultElement: "<input>",
 	options: {
 		appendTo: "body",
 		delay: 300,
diff --git a/ui/jquery.ui.button.js b/ui/jquery.ui.button.js
index b1d060a42e..8f63ec57a6 100644
--- a/ui/jquery.ui.button.js
+++ b/ui/jquery.ui.button.js
@@ -43,6 +43,7 @@ var lastActive,
 	};
 
 $.widget( "ui.button", {
+	defaultElement: "<button>",
 	options: {
 		disabled: null,
 		text: true,
diff --git a/ui/jquery.ui.menu.js b/ui/jquery.ui.menu.js
index 842557da8d..c64057ee09 100644
--- a/ui/jquery.ui.menu.js
+++ b/ui/jquery.ui.menu.js
@@ -16,6 +16,7 @@
 var idIncrement = 0;
 
 $.widget("ui.menu", {
+	defaultElement: "<ul>",
 	_create: function() {
 		var self = this;
 		this.menuId = this.element.attr( "id" ) || "ui-menu-" + idIncrement++;
diff --git a/ui/jquery.ui.spinner.js b/ui/jquery.ui.spinner.js
index 8445db74e5..c8a76f4cf2 100644
--- a/ui/jquery.ui.spinner.js
+++ b/ui/jquery.ui.spinner.js
@@ -14,6 +14,7 @@
 (function($) {
 
 $.widget('ui.spinner', {
+	defaultElement: "<input>",
 	options: {
 		incremental: true,
 		max: null,