diff --git a/defaults/main.yml b/defaults/main.yml
index bb91657..244ba0b 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -28,6 +28,7 @@ kubernetes_pod_network:
   # Calico CNI.
   # cni: 'calico'
   # cidr: '192.168.0.0/16'
+  # serviceCidr: '10.96.0.0/12'
 
 kubernetes_kubeadm_kubelet_config_file_path: '/etc/kubernetes/kubeadm-kubelet-config.yaml'
 
diff --git a/molecule/default/calico.yml b/molecule/default/calico.yml
index c20243d..ddf4614 100644
--- a/molecule/default/calico.yml
+++ b/molecule/default/calico.yml
@@ -7,6 +7,7 @@
     kubernetes_pod_network:
       cni: 'calico'
       cidr: '192.168.0.0/16'
+      serviceCidr: '10.96.0.0/12'
 
     # Allow swap in test environments (hard to control in some envs).
     kubernetes_config_kubelet_configuration: