diff --git a/src/Mailer.ts b/src/Mailer.ts
index 6069467..db590f3 100644
--- a/src/Mailer.ts
+++ b/src/Mailer.ts
@@ -88,8 +88,9 @@ export class Mailer {
      * Function for sending a test mail from the test mail template.
      * @param to_address The address the mail will be sent to - usually the FROM address.
      */
-    public async sendTestMail(to_address: string = config.mail_from, locale: string = "en") {
+    public async sendTestMail(locale: string = "en") {
         await i18next.changeLanguage(locale);
+        const to_address: string = config.mail_from;
 
         const template_html = Handlebars.compile(fs.readFileSync(__dirname + '/templates/test.html', { encoding: 'utf8' }));
         const template_txt = Handlebars.compile(fs.readFileSync(__dirname + '/templates/test.txt', { encoding: 'utf8' }));