diff --git a/ansible/roles/win_domain_membership/tasks/join.yml b/ansible/roles/win_domain_membership/tasks/join.yml
index dbea492..be0e2cd 100644
--- a/ansible/roles/win_domain_membership/tasks/join.yml
+++ b/ansible/roles/win_domain_membership/tasks/join.yml
@@ -3,11 +3,14 @@
   tags: join_domain
   block:
     - name: Set DC01 and DC02 as DNS servers
+      vars:
+        dc01_dns: "{{ os_project }}-{{ win_project }}-dc01"
+        dc02_dns: "{{ os_project }}-{{ win_project }}-dc02"
       win_dns_client:
         adapter_names: "*"
         ipv4_addresses:
-          - "{{ hostvars['eidf075-dev-dc01'].ansible_host }}"
-          - "{{ hostvars['eidf075-dev-dc02'].ansible_host }}"
+          - "{{ hostvars[dc01_dns].ansible_host }}"
+          - "{{ hostvars[dc02_dns].ansible_host }}"
 
     - name: Joining Client machines to domain
       win_domain_membership: