diff --git a/lhc_web/lib/core/lhchat/lhchatexport.php b/lhc_web/lib/core/lhchat/lhchatexport.php
index b0f875e1c7..55b8bd5d7d 100644
--- a/lhc_web/lib/core/lhchat/lhchatexport.php
+++ b/lhc_web/lib/core/lhchat/lhchatexport.php
@@ -2,13 +2,13 @@
 
 class erLhcoreClassChatExport {
 
-	public function chatExportXML(erLhcoreClassModelChat $chat) {
+	public static function chatExportXML(erLhcoreClassModelChat $chat) {
 		$tpl = new erLhcoreClassTemplate('lhexport/xml.tpl.php');
 		$tpl->set('chat', $chat);
 		return $tpl->fetch();
 	}
 
-	public function chatExportJSON(erLhcoreClassModelChat $chat) {
+	public static function chatExportJSON(erLhcoreClassModelChat $chat) {
 		$tpl = new erLhcoreClassTemplate('lhexport/json.tpl.php');
 		$tpl->set('chat', $chat);
 		return $tpl->fetch();
@@ -235,4 +235,4 @@ public static function chatListExportXLS($chats, $params = array()) {
 	}
 }
 
-?>
\ No newline at end of file
+?>