diff --git a/tasks/nginx.yml b/tasks/nginx.yml
index a933739..a4af4f0 100644
--- a/tasks/nginx.yml
+++ b/tasks/nginx.yml
@@ -23,7 +23,7 @@
     iptables_raw:
       name: allow_unifi_nginx_proxy
       state: present
-      rules: '-A OUTPUT -p tcp -d {{ unifi_server_ip }} -m --dports {{ unifi_server_port }} -j ACCEPT'
+      rules: '-A OUTPUT -p tcp -d {{ unifi_server_ip }} -m --dport {{ unifi_server_port }} -j ACCEPT'
     when: unifi_nginx_iptables_enabled
   delegate_to: "{{ unifi_nginx_server }}"
   become: True