diff --git a/PatchFeeder.php b/PatchFeeder.php
index d053839..45c7ab9 100644
--- a/PatchFeeder.php
+++ b/PatchFeeder.php
@@ -12,8 +12,9 @@ $db->sort();
 
 ?>
 <?xml version="1.0" encoding="utf-8"?>
-<rss version="2.0">
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
 <channel>
+<atom:link href="https://www.patchbot.de/rss.xml" rel="self" type="application/rss+xml" />
 <title>Patch Notification Robot</title>
 <link>https://www.patchbot.de/</link>
 <description>Providing you the latest update notifications.</description>
@@ -28,6 +29,7 @@ $db->sort();
 		echo ' version ' . $patch->getVersion() . '.</title>';
 		echo '<link>' . $patch->getURL() . '</link>';
 		echo '<pubDate>' . date(DATE_RSS, $patch->getTimestamp()) . '</pubDate>';
+		echo '<guid isPermaLink="false">' . hash('sha256', $patch) . '</guid>';
 		echo '</item>' . "\r\n";
 	}
 
diff --git a/PatchViewer.php b/PatchViewer.php
index 4f2ed5c..5587f1f 100644
--- a/PatchViewer.php
+++ b/PatchViewer.php
@@ -31,7 +31,7 @@ $db->sort();
     <div class="container p-5">
       <h2 class="mb-4">Patch Notification Robot</h2>
       <p class="text-center"><a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&amp;hosted_button_id=WYQZCVJPVSS5L&amp;source=url"><img src="btn_donateCC_LG.gif" alt="Donate" /></a></p>
-      <p><a href="https://twitter.com/Patchbot_de"><img src="twitter.png" height="32" alt="Follow me" /></a>&nbsp;Providing you the latest update notifications.</p>
+      <p><a href="https://www.patchbot.de/rss.xml"><img src="rss.png" alt="Subscribe" /></a>&nbsp;<a href="https://twitter.com/Patchbot_de"><img src="twitter.png" alt="Follow me" /></a>&nbsp;Providing you the latest update notifications.</p>
       <table id="list" class="table table-bordered table-hover table-sm" data-order='[[ 4, "desc" ]]' data-page-length='25'>
         <thead class="thead-dark">
           <tr>