diff --git a/code/CalendarEvent.php b/code/CalendarEvent.php
index bc144ac..6a9e26b 100755
--- a/code/CalendarEvent.php
+++ b/code/CalendarEvent.php
@@ -113,8 +113,6 @@ public function getCMSFields() {
 		$monthlyInterval->addExtraClass('monthlyinterval');
 		$monthlyIndex->addExtraClass('monthlyindex');
 
-		$this->extend('updateCMSFields',$f);
-		
 		return $f;
 	
 	}