diff --git a/includes/classes/wp-maintenance-mode.php b/includes/classes/wp-maintenance-mode.php
index 9c351b5..9c6eef6 100644
--- a/includes/classes/wp-maintenance-mode.php
+++ b/includes/classes/wp-maintenance-mode.php
@@ -98,6 +98,9 @@ private function __construct() {
 				add_action( 'otter_form_after_submit', array( $this, 'otter_add_subscriber' ) );
 
 				if ( isset( $this->plugin_settings['design']['page_id'] ) && get_option( 'wpmm_new_look' ) && get_post_status( $this->plugin_settings['design']['page_id'] ) === 'private' ) {
+					if ( function_exists( 'wp_functionality_constants' ) ) {
+						wp_functionality_constants();
+					}
 					wp_publish_post( $this->plugin_settings['design']['page_id'] );
 				}