diff --git a/src/Controller/AboutController.php b/src/Controller/AboutController.php
index 2bab6c96..b7c76a9b 100644
--- a/src/Controller/AboutController.php
+++ b/src/Controller/AboutController.php
@@ -76,7 +76,6 @@ class AboutController extends AbstractController
             'dotenv' => [
                 'APP_ENV' => getenv('APP_ENV'),
                 'MAILER_FROM' => getenv('MAILER_FROM'),
-                'MAILER_URL' => getenv('MAILER_URL'),
                 'CORS_ALLOW_ORIGIN' => getenv('CORS_ALLOW_ORIGIN'),
             ],
             'info' => $phpInfo,