diff --git a/inc/media.php b/inc/media.php
index 4f543f4f7c8d71fbd364df9bcf3390fa0b9350da..ed0065676035ed5ff42c482dee0020d01577fb5c 100644
--- a/inc/media.php
+++ b/inc/media.php
@@ -304,7 +304,7 @@ function media_upload_xhr($ns,$auth){
             'mime' => $mime,
             'ext'  => $ext),
         $ns.':'.$id,
-        (($INPUT->get->str('ow') == 'checked') ? true : false),
+        (($INPUT->get->str('ow') == 'true') ? true : false),
         $auth,
         'copy'
     );
diff --git a/lib/scripts/fileuploaderextended.js b/lib/scripts/fileuploaderextended.js
index 4e86812e815452ff70177b012093706d0c9a4acb..ba2aa3ea5b777f1b7cd10c0215d54cd789c4937b 100644
--- a/lib/scripts/fileuploaderextended.js
+++ b/lib/scripts/fileuploaderextended.js
@@ -323,7 +323,7 @@ qq.extend(qq.UploadHandlerXhr.prototype, {
         // build query string
         params = params || {};
         params['qqfile'] = name;
-        params['ow'] = jQuery('.dw__ow').attr('checked');
+        params['ow'] = jQuery('.dw__ow').is(':checked');
         var queryString = qq.obj2url(params, this._options.action);
 
         xhr.open("POST", queryString, true);