diff --git a/qct-pod3-ecord-global.yml b/qct-pod3-ecord-global.yml
index 2455062..f657cf5 100644
--- a/qct-pod3-ecord-global.yml
+++ b/qct-pod3-ecord-global.yml
@@ -35,19 +35,26 @@
 headnode: cord@10.201.101.31
 buildnode: cord@10.201.101.31
 
+# node topology
+physical_node_list:
+  - name: cord-head-03
+    aliases:
+      - head
+      - head1
+
 # Inventory for ansible, used to generate inventory.ini
 inventory_groups:
   config:
     localhost:
       ansible_connection: local
   build:
-    cord-head-03:
+    head1:
       ansible_host: 10.201.101.31
       ansible_port: 22
       ansible_user: cord
       ansible_ssh_pass: cord
   head:
-    cord-head-03:
+    head1:
       ansible_host: 10.201.101.31
       ansible_port: 22
       ansible_user: cord