diff --git a/src/wp-admin/includes/admin.php b/src/wp-admin/includes/admin.php
index cee0a207bc..64a0ded744 100644
--- a/src/wp-admin/includes/admin.php
+++ b/src/wp-admin/includes/admin.php
@@ -65,7 +65,7 @@ require_once(ABSPATH . 'wp-admin/includes/theme.php');
 require_once(ABSPATH . 'wp-admin/includes/user.php');
 
 /** WordPress Site Icon API */
-require_once(ABSPATH . 'wp-admin/includes/site-icon.php');
+require_once(ABSPATH . 'wp-admin/includes/class-wp-site-icon.php');
 
 /** WordPress Update Administration API */
 require_once(ABSPATH . 'wp-admin/includes/update.php');
diff --git a/src/wp-admin/includes/site-icon.php b/src/wp-admin/includes/class-wp-site-icon.php
similarity index 99%
rename from src/wp-admin/includes/site-icon.php
rename to src/wp-admin/includes/class-wp-site-icon.php
index 8255b4debf..d97ba6d63b 100644
--- a/src/wp-admin/includes/site-icon.php
+++ b/src/wp-admin/includes/class-wp-site-icon.php
@@ -633,4 +633,7 @@ class WP_Site_Icon {
 	}
 }
 
+/**
+ * @global WP_Site_Icon $wp_site_icon
+ */
 $GLOBALS['wp_site_icon'] = new WP_Site_Icon;