diff --git a/src/MarketplaceWebServiceOrders/Client.php b/src/MarketplaceWebServiceOrders/Client.php
index cb6d925..f171627 100644
--- a/src/MarketplaceWebServiceOrders/Client.php
+++ b/src/MarketplaceWebServiceOrders/Client.php
@@ -382,7 +382,10 @@ private function _convertListOrdersByNextToken($request) {
      *
      * @param string $awsAccessKeyId AWS Access Key ID
      * @param string $awsSecretAccessKey AWS Secret Access Key
+     * @param string $applicationName Application Name for User-Agent header
+     * @param string $applicationVersion Application Version for User-Agent header
      * @param array $config configuration options.
+     *
      * Valid configuration options are:
      * <ul>
      * <li>ServiceURL</li>