diff --git a/wp-includes/registration-functions.php b/wp-includes/registration-functions.php
index c727b3874..d270cd216 100644
--- a/wp-includes/registration-functions.php
+++ b/wp-includes/registration-functions.php
@@ -1,4 +1,4 @@
 <?php
 // Deprecated.  Use registration.php.
-require_once('./registration.php');
+require_once(ABSPATH . WPINC .  '/registration.php');
 ?>
diff --git a/wp-includes/rss-functions.php b/wp-includes/rss-functions.php
index 05b6b9a52..c07f8671a 100644
--- a/wp-includes/rss-functions.php
+++ b/wp-includes/rss-functions.php
@@ -1,4 +1,4 @@
 <?php
 // Deprecated.  Use rss.php instead.
-require_once (ABSPATH . WPINC . '/registration.php');
+require_once (ABSPATH . WPINC . '/rss.php');
 ?>