diff --git a/classes/cluster/virtual-mcp11-k8s-calico/kubernetes/compute.yml b/classes/cluster/virtual-mcp11-k8s-calico/kubernetes/compute.yml
index a5ad18b..6e9bf70 100644
--- a/classes/cluster/virtual-mcp11-k8s-calico/kubernetes/compute.yml
+++ b/classes/cluster/virtual-mcp11-k8s-calico/kubernetes/compute.yml
@@ -22,6 +22,7 @@
           image: ${_param:kubernetes_calicoctl_image}
         cni:
           image: ${_param:kubernetes_calico_cni_image}
+        mtu: ${_param:kubernetes_mtu}
     common:
       hyperkube:
         image: ${_param:kubernetes_hyperkube_image}
diff --git a/classes/cluster/virtual-mcp11-k8s-calico/kubernetes/init.yml b/classes/cluster/virtual-mcp11-k8s-calico/kubernetes/init.yml
index dfc7c4d..0806512 100644
--- a/classes/cluster/virtual-mcp11-k8s-calico/kubernetes/init.yml
+++ b/classes/cluster/virtual-mcp11-k8s-calico/kubernetes/init.yml
@@ -12,6 +12,7 @@
     kubernetes_scheduler_token: VgkUHfrW07zNxrb0ucFyX7NBnSJN9Xp6
     kubernetes_controller-manager_token: uXrdZ1YKF6qlYm3sHje2iEXMGAGDWOIU
     kubernetes_dns_token: 0S1I4iJeFjq5fopPwwCwTp3xFpEZfeUl
+    kubernetes_mtu: 1500
     etcd_initial_token: IN7KaRMSo3xkGxkjAAPtkRkAgqN4ZNRq
 
     # component docker images