diff --git a/htdocs/core/class/CMailFile.class.php b/htdocs/core/class/CMailFile.class.php
index 5f75dec8d2d..751ddc740c6 100644
--- a/htdocs/core/class/CMailFile.class.php
+++ b/htdocs/core/class/CMailFile.class.php
@@ -358,7 +358,7 @@ class CMailFile
 			$smtps->setTO($this->getValidAddress($this->addr_to, 0, 1));
 			$smtps->setFrom($this->getValidAddress($this->addr_from, 0, 1));
 			$smtps->setTrackId($this->trackid);
-			$smtps->setReplyTo($this->getValidAddress($this->replyto, 0, 1));
+			$smtps->setReplyTo($this->getValidAddress($this->reply_to, 0, 1));
 
 			if (!empty($moreinheader)) $smtps->setMoreInHeader($moreinheader);