How to list and transclude pagecontrol buttons in a table

I am using this code to list and transclude pagecontrol buttons in a table

<table>
<$list filter="[tag[$:/tags/PageControls]]" variable="page-control-buttons">
 <tr>
   <td>
     <$transclude tiddler=<<page-control-buttons>> mode="block"/>
   </td>
 </tr>
</$list>
</table>

This code is only listing the custom made page-control buttons, not the system default buttons. Why is it so ? Any solutions to list the core default buttons also.

try

<$list filter="[all[shadows+tiddlers]tag[$:/tags/PageControls]]" variable="page-control-buttons">

That did the trick. Thanks @buggyj