diff --git a/app/code/Magento/Sales/Model/Order/Email/SenderBuilder.php b/app/code/Magento/Sales/Model/Order/Email/SenderBuilder.php
index e5c9c4b4afddc..e09e13ccded24 100644
--- a/app/code/Magento/Sales/Model/Order/Email/SenderBuilder.php
+++ b/app/code/Magento/Sales/Model/Order/Email/SenderBuilder.php
@@ -9,6 +9,9 @@
 use Magento\Sales\Model\Order\Email\Container\IdentityInterface;
 use Magento\Sales\Model\Order\Email\Container\Template;
 
+/**
+ * Sender Builder
+ */
 class SenderBuilder
 {
     /**