diff --git a/src/Attribute/Security.php b/src/Attribute/Security.php
index f88d42e..2289d06 100644
--- a/src/Attribute/Security.php
+++ b/src/Attribute/Security.php
@@ -6,5 +6,6 @@ namespace Notes\Security\Attribute;
 class Security implements \Notes\Attribute {
     public function __construct(
         public null|bool $locked = null,
+        public null|string $realm = null,
     ) {}
 }