diff --git a/includes/registration.forms.inc b/includes/registration.forms.inc
index 539e46c..c1bbe19 100644
--- a/includes/registration.forms.inc
+++ b/includes/registration.forms.inc
@@ -916,14 +916,14 @@ function registration_entity_settings_form_validate($form, &$form_state) {
   }
 
   // Validate reminder date:
-  if (!empty($reminder['reminder_settings']['reminder_date'] && $reminder['reminder_settings']['reminder_type'] == 'absolute')
+  if (!empty($reminder['reminder_settings']['reminder_date']) && $reminder['reminder_settings']['reminder_type'] == 'absolute'
     && strtotime($reminder['reminder_settings']['reminder_date']) === FALSE
   ) {
     form_set_error('reminder][reminder_settings][reminder_date', t('Reminder date is invalid.'));
   }
 
   // Validate relative reminder date.
-  if (!empty($reminder['reminder_settings']['reminder_relative'] && $reminder['reminder_settings']['reminder_type'] == 'relative')
+  if (!empty($reminder['reminder_settings']['reminder_relative']) && $reminder['reminder_settings']['reminder_type'] == 'relative'
     && strtotime($reminder['reminder_settings']['reminder_relative']) === FALSE) {
     form_set_error('reminder][reminder_settings][reminder_relative', t('Reminder date is invalid.'));
   }