diff --git a/Resources/config/packages/dev/cas_security.yaml b/Resources/config/packages/dev/cas_security.yaml
index 5c0fa24..1e45f7c 100644
--- a/Resources/config/packages/dev/cas_security.yaml
+++ b/Resources/config/packages/dev/cas_security.yaml
@@ -2,3 +2,9 @@ security:
     providers:
         cas:
             id: cas.userprovider
+    firewalls:
+        default:
+            guard:
+                provider: cas
+                authenticators:
+                    - cas.guardauthenticator