diff --git a/tasks/RedHat.yml b/tasks/RedHat.yml
index 5709b61..027e91f 100644
--- a/tasks/RedHat.yml
+++ b/tasks/RedHat.yml
@@ -118,7 +118,7 @@
   when:
     - kubernetes_server|bool
   with_items:
-    - "{{ (lookup('vars', 'ansible_' + kubernetes_interface ).ipv4.network + '/' + lookup('vars', 'ansible_' + kubernetes_interface ).ipv4.netmask) | ipaddr('net') }}"
+    - "{{ (lookup('vars', 'ansible_' + kubernetes_interface ).ipv4.network + '/' + lookup('vars', 'ansible_' + kubernetes_interface ).ipv4.netmask) | ansible.utils.ipaddr('net') }}"
     - "{{ kubernetes_pods_network }}"
     - "10.96.0.0/12"