Template bug; users could not delete posts in a thread page

templates/thread.html

@@ -88,7 +88,7 @@
 		</table>
 	</form>
 	<hr/>
-	<form action="{post_url}" method="post">
+	<form action="{config[post_url]}" method="post">
 	<input type="hidden" name="board" value="{board[uri]}" />
 	{mod?<input type="hidden" name="mod" value="1" />}
 	{body}