diff --git a/main.tf b/main.tf
index 9d7d00b..2d270d8 100644
--- a/main.tf
+++ b/main.tf
@@ -42,6 +42,7 @@ resource "scaleway_server" "k8s-master" {
 
   provisioner "remote-exec" {
     inline = [
+      "sudo echo ${self.private_ip} > /tmp/private_ip",
       "sudo chmod +x /tmp/master.sh",
       "sudo /tmp/master.sh",
     ]
@@ -80,6 +81,7 @@ resource "scaleway_server" "k8s-worker" {
 
   provisioner "remote-exec" {
     inline = [
+      "sudo echo ${self.private_ip} > /tmp/private_ip",
       "sudo chmod +x /tmp/worker.sh",
       "sudo /tmp/worker.sh",
     ]
diff --git a/templates/master.sh b/templates/master.sh
index 4d9d822..bb8ea0f 100644
--- a/templates/master.sh
+++ b/templates/master.sh
@@ -1,5 +1,12 @@
 #!/bin/bash -v
 
+# modify hostname to allow communication between Scaleway instances.
+private_ip=$(cat /tmp/private_ip)
+hostname $private_ip
+echo $private_ip > /etc/hostname
+echo "127.0.0.1 $private_ip" >> /etc/hosts
+
+# install kubernetes master
 apt-get install -y apt-transport-https
 
 curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
@@ -11,7 +18,7 @@ apt-get install -y kubelet kubeadm kubectl kubernetes-cni
 curl -sSL https://get.docker.com/ | sh
 systemctl start docker
 
-kubeadm init --token=${k8stoken}
+kubeadm init --token=${k8stoken} --use-kubernetes-version v1.4.3
 
 kubectl apply -f https://git.io/weave-kube
 
diff --git a/templates/worker.sh b/templates/worker.sh
index c0cdd73..0ddd0fe 100644
--- a/templates/worker.sh
+++ b/templates/worker.sh
@@ -1,5 +1,12 @@
 #!/bin/bash -v
 
+# modify hostname to allow communication between Scaleway instances.
+private_ip=$(cat /tmp/private_ip)
+hostname $private_ip
+echo $private_ip > /etc/hostname
+echo "127.0.0.1 $private_ip" >> /etc/hosts
+
+# install kubernetes worker
 apt-get install -y apt-transport-https
 
 curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -