diff --git a/extend/phpmailer/PHPMailer.php b/extend/phpmailer/PHPMailer.php
index 1246c94f5..ed8e0e03c 100644
--- a/extend/phpmailer/PHPMailer.php
+++ b/extend/phpmailer/PHPMailer.php
@@ -20,6 +20,8 @@
 
 namespace phpmailer;
 
+use phpmailer\Exception;
+
 /**
  * PHPMailer - PHP email creation and transport class.
  *