diff --git a/ansible/group_vars/clickhouse/vars.yml b/ansible/group_vars/clickhouse/vars.yml
index f1ac524..bd7f2d8 100644
--- a/ansible/group_vars/clickhouse/vars.yml
+++ b/ansible/group_vars/clickhouse/vars.yml
@@ -7,6 +7,8 @@ nftables_clickhouse_allow:
     ip: 168.119.7.188
   - fqdn: notebook.ooni.org
     ip: 138.201.19.39
+  - fqdn: backend-hel.ooni.org
+    ip: 65.108.192.151
   - fqdn: clickhouseproxy.dev.ooni.io
     ip: "{{ lookup('dig', 'clickhouseproxy.dev.ooni.io/A') }}"
 
diff --git a/ansible/host_vars/data3.htz-fsn.prod.ooni.nu b/ansible/host_vars/data3.htz-fsn.prod.ooni.nu
index 4af3528..502a005 100644
--- a/ansible/host_vars/data3.htz-fsn.prod.ooni.nu
+++ b/ansible/host_vars/data3.htz-fsn.prod.ooni.nu
@@ -1,2 +1,4 @@
 non_admin_usernames: [ ]
 clickhouse_base_path: /data/clickhouse
+clickhouse_custom_databases:
+  - name: test
\ No newline at end of file