diff --git a/CHANGELOG.md b/CHANGELOG.md
index 971030e..6459488 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
+- Added support for custom service linked role for Auto Scaling group (by @voanhduy1512) 
 - Write your awesome addition here (by @you)
 
 ### Changed
diff --git a/local.tf b/local.tf
index a71d98b..8cb8923 100644
--- a/local.tf
+++ b/local.tf
@@ -84,6 +84,7 @@ locals {
     target_group_arns                        = ""                                            # A comma delimited list of ALB target group ARNs to be associated to the ASG
     enabled_metrics                          = ""                                            # A comma delimited list of metrics to be collected i.e. GroupMinSize,GroupMaxSize,GroupDesiredCapacity
     placement_group                          = ""                                            # The name of the placement group into which to launch the instances, if any.
+    service_linked_role_arn                  = ""                                            # Arn of custom service linked role that Auto Scaling group will use. Useful when you have encrypted EBS
   }
 
   workers_group_launch_template_defaults = "${merge(local.workers_group_launch_template_defaults_defaults, var.workers_group_launch_template_defaults)}"
diff --git a/workers_launch_template.tf b/workers_launch_template.tf
index af6f7f5..19804a8 100644
--- a/workers_launch_template.tf
+++ b/workers_launch_template.tf
@@ -1,12 +1,13 @@
 # Worker Groups using Launch Templates
 
 resource "aws_autoscaling_group" "workers_launch_template" {
-  name_prefix       = "${aws_eks_cluster.this.name}-${lookup(var.worker_groups_launch_template[count.index], "name", count.index)}"
-  desired_capacity  = "${lookup(var.worker_groups_launch_template[count.index], "asg_desired_capacity", local.workers_group_launch_template_defaults["asg_desired_capacity"])}"
-  max_size          = "${lookup(var.worker_groups_launch_template[count.index], "asg_max_size", local.workers_group_launch_template_defaults["asg_max_size"])}"
-  min_size          = "${lookup(var.worker_groups_launch_template[count.index], "asg_min_size", local.workers_group_launch_template_defaults["asg_min_size"])}"
-  force_delete      = "${lookup(var.worker_groups_launch_template[count.index], "asg_force_delete", local.workers_group_launch_template_defaults["asg_force_delete"])}"
-  target_group_arns = ["${compact(split(",", coalesce(lookup(var.worker_groups_launch_template[count.index], "target_group_arns", ""), local.workers_group_launch_template_defaults["target_group_arns"])))}"]
+  name_prefix             = "${aws_eks_cluster.this.name}-${lookup(var.worker_groups_launch_template[count.index], "name", count.index)}"
+  desired_capacity        = "${lookup(var.worker_groups_launch_template[count.index], "asg_desired_capacity", local.workers_group_launch_template_defaults["asg_desired_capacity"])}"
+  max_size                = "${lookup(var.worker_groups_launch_template[count.index], "asg_max_size", local.workers_group_launch_template_defaults["asg_max_size"])}"
+  min_size                = "${lookup(var.worker_groups_launch_template[count.index], "asg_min_size", local.workers_group_launch_template_defaults["asg_min_size"])}"
+  force_delete            = "${lookup(var.worker_groups_launch_template[count.index], "asg_force_delete", local.workers_group_launch_template_defaults["asg_force_delete"])}"
+  target_group_arns       = ["${compact(split(",", coalesce(lookup(var.worker_groups_launch_template[count.index], "target_group_arns", ""), local.workers_group_launch_template_defaults["target_group_arns"])))}"]
+  service_linked_role_arn = "${lookup(var.worker_groups_launch_template[count.index], "service_linked_role_arn", local.workers_group_launch_template_defaults["service_linked_role_arn"])}"
 
   mixed_instances_policy {
     instances_distribution {