diff --git a/lib/private/systemconfig.php b/lib/private/systemconfig.php
index 9f99216fa4e..4fa6e9b93ca 100644
--- a/lib/private/systemconfig.php
+++ b/lib/private/systemconfig.php
@@ -41,6 +41,7 @@ class SystemConfig {
 		'mail_smtppassword' => true,
 		'passwordsalt' => true,
 		'secret' => true,
+		'updater.secret' => true,
 		'ldap_agent_password' => true,
 		'objectstore' => ['arguments' => ['password' => true]],
 	];