diff --git a/src/wp-includes/class-wp-xmlrpc-server.php b/src/wp-includes/class-wp-xmlrpc-server.php
index 8725f5b6d1..fb6e04be3b 100644
--- a/src/wp-includes/class-wp-xmlrpc-server.php
+++ b/src/wp-includes/class-wp-xmlrpc-server.php
@@ -6473,7 +6473,7 @@ class wp_xmlrpc_server extends IXR_Server {
 
 	/*
 	 * MovableType API functions.
-	 * Specs on http://www.movabletype.org/docs/mtmanual_programmatic.html
+	 * Specs on https://movabletype.org/documentation/developer/objects/
 	 */
 
 	/**