diff --git a/src/wp-includes/rest-api/endpoints/class-wp-rest-post-types-controller.php b/src/wp-includes/rest-api/endpoints/class-wp-rest-post-types-controller.php
index 5d8fdd903f..fda0aca360 100644
--- a/src/wp-includes/rest-api/endpoints/class-wp-rest-post-types-controller.php
+++ b/src/wp-includes/rest-api/endpoints/class-wp-rest-post-types-controller.php
@@ -145,7 +145,7 @@ class WP_REST_Post_Types_Controller extends WP_REST_Controller {
 	 *
 	 * @since 4.7.0
 	 *
-	 * @param stdClass        $post_type Post type data.
+	 * @param WP_Post_Type    $post_type Post type object.
 	 * @param WP_REST_Request $request   Full details about the request.
 	 * @return WP_REST_Response Response object.
 	 */