diff --git a/htdocs/core/class/CMailFile.class.php b/htdocs/core/class/CMailFile.class.php
index f299ecf9a88..fddd06f89b2 100644
--- a/htdocs/core/class/CMailFile.class.php
+++ b/htdocs/core/class/CMailFile.class.php
@@ -75,6 +75,16 @@ class CMailFile
 	public $smtps; // Contains SMTPs object (if this method is used)
 	public $phpmailer; // Contains PHPMailer object (if this method is used)
 
+	/**
+	 * @var Swift_SmtpTransport
+	 */
+	public $transport;
+
+	/**
+	 * @var Swift_Mailer
+	 */
+	public $mailer;
+
 	/**
 	 * @var string CSS
 	 */