diff --git a/apps/calendar/ajax/events.php b/apps/calendar/ajax/events.php
index 56fa51aaff..5c7baa568a 100644
--- a/apps/calendar/ajax/events.php
+++ b/apps/calendar/ajax/events.php
@@ -5,10 +5,6 @@
  * later.
  * See the COPYING-README file.
  */
-
- 
-require_once('when/When.php');
-
 OCP\JSON::checkLoggedIn();
 OCP\JSON::checkAppEnabled('calendar');