diff --git a/packages/block-library/src/navigation/index.php b/packages/block-library/src/navigation/index.php
index 52376aba0d44e1..a5c2fae7f531ee 100644
--- a/packages/block-library/src/navigation/index.php
+++ b/packages/block-library/src/navigation/index.php
@@ -92,8 +92,8 @@ function block_core_navigation_sort_menu_items_by_parent_id( $menu_items ) {
 	 *   </ul>
 	 * </li>
 	 *
-	 * @param string $w Markup of the navigation block.
-	 * @param array  $block_attributes Block attributes.
+	 * @param WP_HTML_Tag_Processor $w                Markup of the navigation block.
+	 * @param array                 $block_attributes Block attributes.
 	 *
 	 * @return string Submenu markup with the directives injected.
 	 */