diff --git a/inactive_user.module b/inactive_user.module
index 9b23af3..2ba1f5e 100644
--- a/inactive_user.module
+++ b/inactive_user.module
@@ -52,8 +52,8 @@ function inactive_user_user_cancel($edit, $account, $method) {
  * without underscore)
  */
 function inactive_user_custom_settings() {
-  $period = array(0 => 'disabled') + drupal_map_assoc(array(604800, 1209600, 1814400, 2419200, 2592000, 7776000, 15552000, 23328000, 31536000, 47088000, 63072000), '_format_interval');
-  $warn_period = array(0 => 'disabled') + drupal_map_assoc(array(86400, 172800, 259200, 604800, 1209600, 1814400, 2592000), '_format_interval');
+  $period = array(0 => 'disabled') + drupal_map_assoc(array(604800, 1209600, 1814400, 2419200, 2592000, 7776000, 15552000, 23328000, 31536000, 47088000, 63072000), 'format_interval');
+  $warn_period = array(0 => 'disabled') + drupal_map_assoc(array(86400, 172800, 259200, 604800, 1209600, 1814400, 2592000), 'format_interval');
   $mail_variables = ' %username, %useremail, %lastaccess, %period, %sitename, %siteurl';
 
   // set administrator e-mail
@@ -663,4 +663,4 @@ function _inactive_user_with_content($uid) {
   $user_has_comments = db_select('comment', 'c')->fields('c', array('uid'))->condition('c.uid', $uid)->execute()->rowcount();
 
   return (($user_has_nodes + $user_has_comments) > 0) ? 1 : 0;
-}
\ No newline at end of file
+}