diff --git a/ansible/host_vars/ams-slack-1.ooni.org b/ansible/host_vars/ams-slack-1.ooni.org
index 21dc7d2..f6dec97 100644
--- a/ansible/host_vars/ams-slack-1.ooni.org
+++ b/ansible/host_vars/ams-slack-1.ooni.org
@@ -8,5 +8,6 @@ nft_rules_tcp:
   - name: 443
     rules:
       - add rule inet filter input tcp dport 443 counter accept comment "incoming HTTPS"
-    - name: 9100
-       - add rule inet filter input ip saddr 5.9.112.244 tcp dport 9100 counter accept comment "clickhouse prometheus from monitoring.ooni.org"
+  - name: 9100
+    rules:
+      - add rule inet filter input ip saddr 5.9.112.244 tcp dport 9100 counter accept comment "clickhouse prometheus from monitoring.ooni.org"