diff --git a/src/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php b/src/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
index e8d4b5c09c..d493f06d0b 100644
--- a/src/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
+++ b/src/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php
@@ -1211,7 +1211,7 @@ class WP_REST_Users_Controller extends WP_REST_Controller {
 			}
 
 			// Include admin functions to get access to get_editable_roles().
-			require_once ABSPATH . 'wp-admin/includes/admin.php';
+			require_once ABSPATH . 'wp-admin/includes/user.php';
 
 			// The new role must be editable by the logged-in user.
 			$editable_roles = get_editable_roles();