diff --git a/host_vars/competitorsvcs.studentrobotics.org.yml b/host_vars/competitorsvcs.studentrobotics.org.yml
index ca2cc0d..adc169e 100644
--- a/host_vars/competitorsvcs.studentrobotics.org.yml
+++ b/host_vars/competitorsvcs.studentrobotics.org.yml
@@ -13,5 +13,4 @@ certbot_certs:
       - "{{ canonical_hostname }}"
 
 # Mythic have additionally routed this IP to the VM
-clatd_conf: |
-  clat-v6-addr=2a00:1098:80:bc::2
+clat_v6_addr: 2a00:1098:80:bc::2
diff --git a/roles/clatd/README.md b/roles/clatd/README.md
index 9aa9484..00e7f8c 100644
--- a/roles/clatd/README.md
+++ b/roles/clatd/README.md
@@ -4,4 +4,4 @@ A CLAT / SIIT-DC Edge Relay implementation for Linux.
 
 Used to provide IPv4 outbound connectivity to an IPv6-only VM.
 
-It's likely `clat-v6-addr` will need to be configured to assign the correct IP to the created `clat` interface. This may require an additional IPv6 address be routed to the VM. This is configured with the `clatd_conf` variable.
+It's likely `clat-v6-addr` will need to be configured to assign the correct IP to the created `clat` interface. This may require an additional IPv6 address be routed to the VM.
diff --git a/roles/clatd/defaults/main.yml b/roles/clatd/defaults/main.yml
deleted file mode 100644
index 66f3064..0000000
--- a/roles/clatd/defaults/main.yml
+++ /dev/null
@@ -1 +0,0 @@
-clatd_conf: ""
diff --git a/roles/clatd/tasks/main.yml b/roles/clatd/tasks/main.yml
index 7b3d624..cbec919 100644
--- a/roles/clatd/tasks/main.yml
+++ b/roles/clatd/tasks/main.yml
@@ -36,8 +36,8 @@
   when: install_clatd.changed   # noqa: no-handler - Use a handler to ensure execution order
 
 - name: Install configuration
-  copy:
-    content: "{{ clatd_conf }}"
+  template:
+    src: clatd.conf
     dest: /etc/clatd.conf
     mode: "0644"
   notify: Restart clatd
diff --git a/roles/clatd/templates/clatd.conf b/roles/clatd/templates/clatd.conf
new file mode 100644
index 0000000..b36510d
--- /dev/null
+++ b/roles/clatd/templates/clatd.conf
@@ -0,0 +1,3 @@
+{% if clat_v6_addr is defined %}
+clat-v6-addr={{ clat_v6_addr }}
+{% endif %}