diff --git a/src/wp-includes/rest-api/class-wp-rest-server.php b/src/wp-includes/rest-api/class-wp-rest-server.php
index cc633aa25345e..c04ffea3f5fa8 100644
--- a/src/wp-includes/rest-api/class-wp-rest-server.php
+++ b/src/wp-includes/rest-api/class-wp-rest-server.php
@@ -1353,11 +1353,7 @@ protected function get_json_last_error() {
 	 *
 	 * @since 4.4.0
 	 *
-	 * @param array $request {
-	 *     Request.
-	 *
-	 *     @type string $context Context.
-	 * }
+	 * @param WP_REST_Request $request Request object.
 	 * @return WP_REST_Response The API root index data.
 	 */
 	public function get_index( $request ) {