diff --git a/plugins/libkolab/lib/kolab_format_task.php b/plugins/libkolab/lib/kolab_format_task.php
index 4433cf68..b041b08a 100644
--- a/plugins/libkolab/lib/kolab_format_task.php
+++ b/plugins/libkolab/lib/kolab_format_task.php
@@ -49,7 +49,7 @@ class kolab_format_task extends kolab_format_xcal
         $this->obj->setPercentComplete(intval($object['complete']));
 
         if (isset($object['start']))
-            $this->obj->setStart(self::get_datetime($object['start']));
+            $this->obj->setStart(self::get_datetime($object['start'], null, $object['start']->_dateonly));
 
         $this->obj->setDue(self::get_datetime($object['due'], null, $object['due']->_dateonly));