diff --git a/global/overlay/etc/puppet/cosmos-rules.yaml b/global/overlay/etc/puppet/cosmos-rules.yaml
index 3c1ed94..7c1551a 100644
--- a/global/overlay/etc/puppet/cosmos-rules.yaml
+++ b/global/overlay/etc/puppet/cosmos-rules.yaml
@@ -139,6 +139,15 @@ internal-dco-test-radius-2.geteduroam.sunet.se:
   sunet::certbot::acmed:
     agent: true
 
+internal-sto3-test-radius-3.geteduroam.sunet.se:
+  sunet::dockerhost2:
+  sunet::geteduroam:
+    domain: get.test.eduroam.se
+    realm: get-v1.test.eduroam.se
+    app: false
+  sunet::certbot::acmed:
+    agent: true
+
 internal-sto1-prod-db-1.geteduroam.sunet.se:
    sunet::dockerhost2:
      nat: false