diff --git a/roles/mailman3/templates/initial-data.json.j2 b/roles/mailman3/templates/initial-data.json.j2
index 16ff6a78a3..ecaf912b67 100644
--- a/roles/mailman3/templates/initial-data.json.j2
+++ b/roles/mailman3/templates/initial-data.json.j2
@@ -14,7 +14,7 @@
     "fields": {
         "name": "{{ service_data.display_name }}",
         "sites": [
-            {% for host in mailman_domains %}
+            {% for host in mailman3_domains %}
             {{ loop.index }}{% if not loop.last %},{% endif %}
             {% endfor %}
         ],