diff --git a/Core/Frameworks/Baikal/WWWRoot/cal.php b/Core/Frameworks/Baikal/WWWRoot/cal.php
index 139baef..d16244e 100644
--- a/Core/Frameworks/Baikal/WWWRoot/cal.php
+++ b/Core/Frameworks/Baikal/WWWRoot/cal.php
@@ -74,7 +74,7 @@ $calendarBackend = new \Sabre\CalDAV\Backend\PDO($GLOBALS["DB"]->getPDO());
 # Directory structure
 $nodes = array(
     new \Sabre\CalDAV\Principal\Collection($principalBackend),
-    new \Sabre\CalDAV\CalendarRootNode($principalBackend, $calendarBackend),
+    new \Sabre\CalDAV\CalendarRoot($principalBackend, $calendarBackend),
 );
 
 # Initializing server