diff --git a/doc/00_Installation.md b/doc/00_Installation.md
index c7e877d1..ac26ea8c 100644
--- a/doc/00_Installation.md
+++ b/doc/00_Installation.md
@@ -123,8 +123,6 @@ pimcore_studio_backend:
 
 ```yaml
 security:
-    firewalls: 
-        pimcore_studio: '%pimcore_studio_backend.firewall_settings%'
     access_control:
       - { path: ^/your-prefix/api/(docs|docs.json|translations)$, roles: PUBLIC_ACCESS }
       - { path: ^/your-prefix, roles: ROLE_PIMCORE_USER }