diff --git a/wp-includes/class-wp-admin-bar.php b/wp-includes/class-wp-admin-bar.php
index baa6455b30..b3b16bc1b6 100644
--- a/wp-includes/class-wp-admin-bar.php
+++ b/wp-includes/class-wp-admin-bar.php
@@ -143,7 +143,7 @@ class WP_Admin_Bar {
 					}
 
 					if ( ! empty( $this->root->children->secondary ) ):
-						?><ul class="top-secondary"><?php
+						?><ul class="ab-top-menu top-secondary"><?php
 
 							foreach ( $this->root->children->secondary as $node ) {
 								$this->recursive_render( $node );