diff --git a/wp-includes/class.wp-http-ixr-client.php b/wp-includes/class-wp-http-ixr-client.php
similarity index 100%
rename from wp-includes/class.wp-http-ixr-client.php
rename to wp-includes/class-wp-http-ixr-client.php
diff --git a/wp-includes/class.wp-xmlrpc-server.php b/wp-includes/class-wp-xmlrpc-server.php
similarity index 100%
rename from wp-includes/class.wp-xmlrpc-server.php
rename to wp-includes/class-wp-xmlrpc-server.php
diff --git a/wp-includes/comment.php b/wp-includes/comment.php
index 421de95dc9..071a3faf85 100644
--- a/wp-includes/comment.php
+++ b/wp-includes/comment.php
@@ -1741,7 +1741,7 @@ function generic_ping($post_id = 0) {
 function pingback($content, $post_ID) {
 	global $wp_version;
 	include_once(ABSPATH . WPINC . '/class-IXR.php');
-	include_once(ABSPATH . WPINC . '/class.wp-http-ixr-client.php');
+	include_once(ABSPATH . WPINC . '/class-wp-http-ixr-client.php');
 	
 	// original code by Mort (http://mort.mine.nu:8080)
 	$post_links = array();
@@ -1871,7 +1871,7 @@ function trackback($trackback_url, $title, $excerpt, $ID) {
 function weblog_ping($server = '', $path = '') {
 	global $wp_version;
 	include_once(ABSPATH . WPINC . '/class-IXR.php');
-	include_once(ABSPATH . WPINC . '/class.wp-http-ixr-client.php');
+	include_once(ABSPATH . WPINC . '/class-wp-http-ixr-client.php');
 
 	// using a timeout of 3 seconds should be enough to cover slow servers
 	$client = new WP_HTTP_IXR_Client($server, ((!strlen(trim($path)) || ('/' == $path)) ? false : $path));
diff --git a/xmlrpc.php b/xmlrpc.php
index b8f3c6262f..4b15a0bf31 100644
--- a/xmlrpc.php
+++ b/xmlrpc.php
@@ -53,7 +53,7 @@ exit;
 
 include_once(ABSPATH . 'wp-admin/includes/admin.php');
 include_once(ABSPATH . WPINC . '/class-IXR.php');
-include_once(ABSPATH . WPINC . '/class.wp-xmlrpc-server.php');
+include_once(ABSPATH . WPINC . '/class-wp-xmlrpc-server.php');
 
 // Turn off all warnings and errors.
 // error_reporting(0);