diff --git a/playbooks/groups/overcloud-config.yml b/playbooks/groups/overcloud-config.yml
index c94d980e1c..bee091d1e4 100644
--- a/playbooks/groups/overcloud-config.yml
+++ b/playbooks/groups/overcloud-config.yml
@@ -113,6 +113,7 @@
     os_subnet:
       cloud: "{{ os_cloud }}"
       name: external-subnet
+      network_name: external
       cidr: 209.132.184.0/24
       allocation_pool_start: 209.132.184.140
       allocation_pool_end: 209.132.184.146