diff --git a/license/index.php b/license/index.php
index 3f493bc..f454bcb 100644
--- a/license/index.php
+++ b/license/index.php
@@ -46,5 +46,9 @@ JMenu is <a href="/license/MIT.php">MIT Licensed</a>.</p>
 <p>Parsedown is used for all of the Markdown processing for this site.<br/>
 Parsedown is <a href="/license/MIT.php">MIT Licensed</a>.</p>
 <?php display_file($_SERVER['DOCUMENT_ROOT'].'/common/vendor/erusev/parsedown/LICENSE.txt');?>
+<h3><a href="https://github.com/erusev/parsedown-extra">Parsedown Extra</a></h3>
+<blockquote><p>An extension of <a href="https://github.com/erusev/parsedown">Parsedown</a> that adds support for <a href="https://michelf.ca/projects/php-markdown/extra/">Markdown Extra.</a></p><</blockquote>
+<p>Pasrsedown-extra is used primarily to add support for footnotes in articles.</p>
+<?php display_file($_SERVER['DOCUMENT_ROOT'].'/common/vendor/erusev/parsedown-extra/LICENSE.txt');?>
 </article>
 <?php include_once ($_SERVER['DOCUMENT_ROOT'].'/common/footer.php');?>