diff -up ./src/PHPMailer.php.rpm ./src/PHPMailer.php
--- ./src/PHPMailer.php.rpm	2021-09-01 12:46:30.267656729 +0200
+++ ./src/PHPMailer.php	2021-09-01 12:47:43.003485872 +0200
@@ -2253,6 +2253,7 @@ class PHPMailer
         if (empty($lang_path)) {
             //Calculate an absolute path so it can work if CWD is not here
             $lang_path = dirname(__DIR__) . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR;
+            $lang_path = __DIR__ . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR;
         }
 
         //Validate $langcode