diff --git a/src/mail.js b/src/mail.js
index a86dfe5f0..b17a90163 100644
--- a/src/mail.js
+++ b/src/mail.js
@@ -722,7 +722,7 @@ function restartMail(callback) {
     services.getServiceConfig('mail', function (error, serviceConfig) {
         if (error) return callback(error);
 
-        debug(`restartMail: restarting mail container with ${settings.mailFqdn()} ${settings.adminDomain()}`);
+        debug(`restartMail: restarting mail container with mailFqdn:${settings.mailFqdn()} adminDomain:${settings.adminDomain()}`);
         configureMail(settings.mailFqdn(), settings.adminDomain(), serviceConfig, callback);
     });
 }