diff --git a/roles/nagios_server/tasks/main.yml b/roles/nagios_server/tasks/main.yml
index c87d23b4a5..27fbadd76b 100644
--- a/roles/nagios_server/tasks/main.yml
+++ b/roles/nagios_server/tasks/main.yml
@@ -501,7 +501,7 @@
 - name: Build out nagios hostgroup templates (iad2)
   ansible.builtin.template: src=nagios/hostgroups/{{item}}.j2 dest=/etc/nagios/hostgroups/{{item}} mode=0644 owner=root group=root
   with_items:
-    - "all.{{datacenter}}.cfg"
+    - "all.cfg.{{datacenter}}"
     - vpnclients.cfg
     - nomail.cfg
     - checkswap.cfg