diff --git a/tasks/cluster_kubeadm.yml b/tasks/cluster_kubeadm.yml
index c6fad27..1d496ae 100644
--- a/tasks/cluster_kubeadm.yml
+++ b/tasks/cluster_kubeadm.yml
@@ -203,7 +203,7 @@
 
 - name: Defined a default lb_kubemaster
   set_fact:
-    lb_kubemaster: "{{ groups['KubernetesMasters'][0] }}"
+    lb_kubemaster: "{{ groups['KubernetesMasters_' ~ kubernetes_cluster_name][0] }}"
   when:
     - lb_kubemaster is undefined
 #    - groups['KubernetesMasters'] | length > 1
@@ -219,7 +219,7 @@
       group: root
       mode: 0600
 
-  - name: Init Kubernetes on {{ groups['KubernetesMasters'][0] }}
+  - name: Init Kubernetes on {{ groups['KubernetesMasters_' ~ kubernetes_cluster_name][0] }}
     command: kubeadm init --config=/root/kubeadm-config.yaml
 
   - name: Add {{ ansible_hostname }} to KubernetesMasterConfigured group