diff --git a/file/lib/page/ChatPage.class.php b/file/lib/page/ChatPage.class.php
index 9656430..7c21fbd 100644
--- a/file/lib/page/ChatPage.class.php
+++ b/file/lib/page/ChatPage.class.php
@@ -67,7 +67,7 @@ public function readData() {
 		$this->userData['color'] = \wcf\util\ChatUtil::readUserData('color');
 		\wcf\util\ChatUtil::writeUserData(array('roomID' => $this->room->roomID));
 		$this->newestMessages = chat\message\ChatMessageList::getNewestMessages($this->room, CHAT_LASTMESSAGES);
-		\wcf\util\ChatUtil::writeUserData(array('lastSeen' => end($this->newestMessages)->messageID));
+		\wcf\util\ChatUtil::writeUserData(array('lastSeen' => count($this->newestMessages) ? end($this->newestMessages)->messageID : 0));
 		
 		if (CHAT_DISPLAY_JOIN_LEAVE) {
 			$messageAction = new chat\message\ChatMessageAction(array(), 'create', array(
diff --git a/template/chatCopyright.tpl b/template/chatCopyright.tpl
index 06fc5cf..bd7e0a6 100644
--- a/template/chatCopyright.tpl
+++ b/template/chatCopyright.tpl
@@ -1,7 +1,7 @@
-{if $templateName == 'chat'}<address class="copyright">{lang}wcf.chat.copyright{/lang}</address>
+{if $templateName == 'chat'}<address id="chatCopyright" class="copyright">{lang}wcf.chat.copyright{/lang}</address>
 {elseif $templateName == 'chatCopyright'}
 <dl><dt>Project-Leader</dt><dd><ul><li><a href="http://timwolla.wbbaddons.de/">Tim Düsterhus</a></li></ul></dd></dl>
-<dl><dt>Developer</dt><dd><ul><li><a href="http://timwolla.wbbaddons.de/">Tim Düsterhus</a></li><li>Maximilian Mader</li></ul></dd></dl>
+<dl><dt>Developer</dt><dd><ul><li><a href="http://timwolla.wbbaddons.de/">Tim Düsterhus</a></li><li><a href="https://github.com/max-m">Maximilian Mader</a></li></ul></dd></dl>
 <dl><dt>Graphics</dt><dd><ul><li>Tom</li></ul></dd></dl>
 <dl><dt>Translation</dt><dd><ul><li>Riccardo Vianello (it)</li></ul></dd></dl>
 <dl><dt>Thanks</dt><dd><ul><li>-noone-</li><li>Alexander Ebert</li><li>Gabi</li><li>Stefan Hahn</li><li><a href="http://packageforge.de">Oliver Kliebisch</a></li><li>Christian Kubandt</li><li><a href="http://www.wbbaddons.de">Martin Schwendowius</a></li></ul></dd></dl>