diff --git a/ubuntu/roles/firewall-ruleset-deploy/tasks/main.yml b/ubuntu/roles/firewall-ruleset-deploy/tasks/main.yml
index dc3c2ea..7c0b588 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