diff --git a/js/install.js b/js/install.js
index 32a54111e2..cc8a8d63cf 100644
--- a/js/install.js
+++ b/js/install.js
@@ -1,16 +1,16 @@
-$(document).ready(function(){
+$(function() {
     $.ajax({url:'check-fancy',
         type:'GET',
         success:function(data, textStatus) {
-            $('#fancy-enable').attr('checked', true);
-            $('#fancy-disable').attr('checked', false);
+            $('#fancy-enable').prop('checked', true);
+            $('#fancy-disable').prop('checked', false);
             $('#fancy-form_guide').text(data);
         },
         error:function(XMLHttpRequest, textStatus, errorThrown) {
-            $('#fancy-enable').attr('checked', false);
-            $('#fancy-disable').attr('checked', true);
-            $('#fancy-enable').attr('disabled', true);
-            $('#fancy-disable').attr('disabled', true);
+            $('#fancy-enable').prop('checked', false);
+            $('#fancy-disable').prop('checked', true);
+            $('#fancy-enable').prop('disabled', true);
+            $('#fancy-disable').prop('disabled', true);
             $('#fancy-form_guide').text("Fancy URL support detection failed, disabling this option. Make sure you renamed htaccess.sample to .htaccess.");
         }
     });