diff --git a/src/Authorization/Event/GetAvailableAttributesEvent.php b/src/Authorization/Event/GetAvailableAttributesEvent.php
index 8cefaa60e3e6286dbbe9deae34ee004805508491..58010126c882abc52e3241189e19748a87f5adcf 100644
--- a/src/Authorization/Event/GetAvailableAttributesEvent.php
+++ b/src/Authorization/Event/GetAvailableAttributesEvent.php
@@ -41,4 +41,9 @@ class GetAvailableAttributesEvent extends Event
     {
         $this->attributes = $attributes;
     }
+
+    public function addAttribute(string $name): void
+    {
+        $this->attributes[] = $name;
+    }
 }