diff --git a/roles/vtn-refresh/defaults/main.yml b/roles/vtn-refresh/defaults/main.yml
index 07ee055..9925958 100644
--- a/roles/vtn-refresh/defaults/main.yml
+++ b/roles/vtn-refresh/defaults/main.yml
@@ -3,7 +3,7 @@
 
 credentials_dir: "{{ playbook_dir }}/credentials"
 
-xos_admin_user: xosadmin@opencord.org
+xos_admin_user: "xosadmin@opencord.org"
 xos_admin_pass: "{{ lookup('password', credentials_dir ~ '/xosadmin@opencord.org chars=ascii_letters,digits') }}"
 
 keystone_admin_password: "{{ lookup('password', credentials_dir ~ '/cord_keystone_admin chars=ascii_letters,digits') }}"