diff --git a/global/overlay/etc/puppet/cosmos-rules.yaml b/global/overlay/etc/puppet/cosmos-rules.yaml
index 58107a6..528851f 100644
--- a/global/overlay/etc/puppet/cosmos-rules.yaml
+++ b/global/overlay/etc/puppet/cosmos-rules.yaml
@@ -115,3 +115,8 @@ internal-dco-prod-db-2.geteduroam.sunet.se:
    sunet::dockerhost2:
      nat: false
    geteduroam::db:
+
+internal-sto3-prod-db-3.geteduroam.sunet.se:
+   sunet::dockerhost2:
+     nat: false
+   geteduroam::db: