diff --git a/ubuntu/roles/firewall-ruleset-deploy/tasks/main.yml b/ubuntu/roles/firewall-ruleset-deploy/tasks/main.yml
index 7c0b588..cb875f7 100644
--- a/ubuntu/roles/firewall-ruleset-deploy/tasks/main.yml
+++ b/ubuntu/roles/firewall-ruleset-deploy/tasks/main.yml
@@ -12,13 +12,13 @@
 
 - name: Copy IPv4 ruleset
   copy:
-    src: "{{ ansible_fqdn }}".rules.v4
+    src: "{{ ansible_fqdn }}.rules.v4"
     dest: /etc/iptables/rules.v4
     backup: yes
 
 - name: Copy IPv6 ruleset
   copy:
-    src: "{{ ansible_fqdn }}".rules.v6
+    src: "{{ ansible_fqdn }}.rules.v6"
     dest: /etc/iptables/rules.v6
     backup: yes