diff --git a/README.md b/README.md
index 1a402a3..c887987 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ module "kubernetes" {
     node_instance_type = "t2.large"
     node_asg_min = 1
     node_asg_max = 2
-    node_asg_desired = 1
+    node_asg_desired = 2
 
     vpc = "<vpc>"
     ntp_servers = "<comma seperated list>"
diff --git a/autoscaling_nodes.tf b/autoscaling_nodes.tf
index 0e2bee1..8c96e4c 100644
--- a/autoscaling_nodes.tf
+++ b/autoscaling_nodes.tf
@@ -1,4 +1,14 @@
 
+data "aws_subnet" "region_1b" {
+  vpc_id = "${var.vpc}"
+  availability_zone = "eu-central-1b"
+}
+
+data "aws_subnet" "region_1c" {
+  vpc_id = "${var.vpc}"
+  availability_zone = "eu-central-1c"
+}
+
 data "template_file" "nodes" {
   template = "${file("${path.module}/scripts/userdata.tpl")}"
 
@@ -77,7 +87,7 @@ resource "aws_autoscaling_group" "nodes" {
   desired_capacity          = "${var.node_asg_desired}"
   force_delete              = true
   launch_configuration      = "${aws_launch_configuration.nodes.name}"
-  vpc_zone_identifier       = ["${data.aws_subnet_ids.vpc.ids}"]
+  vpc_zone_identifier       = ["${data.aws_subnet.region_1b.id}", "${data.aws_subnet.region_1c.id}"]
 
   tags = [
     {
diff --git a/main.tf b/main.tf
index 572dd12..95f8470 100644
--- a/main.tf
+++ b/main.tf
@@ -1,6 +1,3 @@
-data "aws_subnet_ids" "vpc" {
-  vpc_id = "${var.vpc}"
-}
 
 data "aws_ami" "ubuntu" {
   most_recent = true