diff --git a/CRM/Admin/Form/ScheduleReminders.php b/CRM/Admin/Form/ScheduleReminders.php
index 216f4fe09f4a1e8785b27889d9e54fa34dac9940..63db03dc69fe2e282603f0d9dd3c39a91e690b1a 100644
--- a/CRM/Admin/Form/ScheduleReminders.php
+++ b/CRM/Admin/Form/ScheduleReminders.php
@@ -519,6 +519,8 @@ class CRM_Admin_Form_ScheduleReminders extends CRM_Admin_Form {
       'end_frequency_interval',
       'end_action',
       'end_date',
+      'effective_end_date',
+      'effective_start_date',
     ];
 
     if (empty($params['absolute_date'])) {