diff --git a/libraries/src/Mail/Mail.php b/libraries/src/Mail/Mail.php
index aba739e4ee390..d70b3502efd9a 100644
--- a/libraries/src/Mail/Mail.php
+++ b/libraries/src/Mail/Mail.php
@@ -48,7 +48,7 @@ public function __construct($exceptions = true)
 		parent::__construct($exceptions);
 
 		// PHPMailer has an issue using the relative path for its language files
-		$this->setLanguage('joomla', __DIR__ . '/language');
+		$this->setLanguage('en_gb', __DIR__ . '/language/');
 
 		// Configure a callback function to handle errors when $this->edebug() is called
 		$this->Debugoutput = function ($message, $level)
diff --git a/libraries/src/Mail/language/phpmailer.lang-joomla.php b/libraries/src/Mail/language/phpmailer.lang-en_gb.php
similarity index 100%
rename from libraries/src/Mail/language/phpmailer.lang-joomla.php
rename to libraries/src/Mail/language/phpmailer.lang-en_gb.php