diff --git a/wp-admin/custom-navigation.php b/wp-admin/custom-navigation.php
index 463cac5d6..0996ef7e0 100644
--- a/wp-admin/custom-navigation.php
+++ b/wp-admin/custom-navigation.php
@@ -22,7 +22,7 @@ wp_enqueue_script( 'custom-navigation-php-functions' );
 wp_enqueue_script( 'jquery-ui-dialog' );
 
 require_once('admin-header.php');
-require_once (ABSPATH . WPINC . '/custom-navigation-functions.php');
+require_once (ABSPATH . WPINC . '/custom-navigation.php');
 
 wp_custom_navigation();
 
diff --git a/wp-includes/custom-navigation-functions.php b/wp-includes/custom-navigation.php
similarity index 100%
rename from wp-includes/custom-navigation-functions.php
rename to wp-includes/custom-navigation.php
diff --git a/wp-includes/general-template.php b/wp-includes/general-template.php
index 452295547..8158134e2 100644
--- a/wp-includes/general-template.php
+++ b/wp-includes/general-template.php
@@ -2221,7 +2221,7 @@ function get_the_generator( $type = '' ) {
  * @since 3.0.0
  */
 function custom_nav($args = array()) {
-	require_once (ABSPATH . WPINC . '/custom-navigation-functions.php');
+	require_once (ABSPATH . WPINC . '/custom-navigation.php');
 	wp_custom_navigation_output($args);
 }