diff --git a/playbooks/group_vars/zuul-preview.yaml b/playbooks/group_vars/zuul-preview.yaml
index 71b79291b7..902c874cd6 100644
--- a/playbooks/group_vars/zuul-preview.yaml
+++ b/playbooks/group_vars/zuul-preview.yaml
@@ -1 +1,3 @@
 ansible_python_interpreter: python3
+iptables_extra_public_tcp_ports:
+  - 80