diff --git a/CHANGELOG.md b/CHANGELOG.md
index a3fe093..e333fa6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [[v9.?.?](https://github.com/terraform-aws-modules/terraform-aws-eks/compare/v9.0.0...HEAD)] - 2020-xx-xx]
 
+- Ensuring that ami lookup hierarchy is worker_group_launch_templates and worker_groups -> worker_group_defaults -> and finally aws ami lookup (by @ck3mp3r)
 - Fix doc about spot instances, cluster-autoscaler should be scheduled on normal instances instead of spot (by @simowaer)
 - Adding `encrypted` option to worker's root_block_device as read from the worker configurations (by @craig-rueda)
 - Use correct policy arns for CN regions (cn-north-1, cn-northwest-1) (by @cofyc)
diff --git a/local.tf b/local.tf
index 1175176..704b5cd 100644
--- a/local.tf
+++ b/local.tf
@@ -19,14 +19,15 @@ locals {
   worker_group_count                 = length(var.worker_groups)
   worker_group_launch_template_count = length(var.worker_groups_launch_template)
 
-  default_ami_id_linux   = data.aws_ami.eks_worker.id
-  default_ami_id_windows = data.aws_ami.eks_worker_windows.id
+  default_ami_id_linux   = coalesce(local.workers_group_defaults.ami_id, data.aws_ami.eks_worker.id)
+  default_ami_id_windows = coalesce(local.workers_group_defaults.ami_id_windows, data.aws_ami.eks_worker_windows.id)
 
   policy_arn_prefix = contains(["cn-northwest-1", "cn-north-1"], data.aws_region.current.name) ? "arn:aws-cn:iam::aws:policy" : "arn:aws:iam::aws:policy"
   workers_group_defaults_defaults = {
     name                          = "count.index"               # Name of the worker group. Literal count.index will never be used but if name is not set, the count.index interpolation will be used.
     tags                          = []                          # A list of map defining extra tags to be applied to the worker group autoscaling group.
-    ami_id                        = ""                          # AMI ID for the eks workers. If none is provided, Terraform will search for the latest version of their EKS optimized worker AMI based on platform.
+    ami_id                        = ""                          # AMI ID for the eks linux based workers. If none is provided, Terraform will search for the latest version of their EKS optimized worker AMI based on platform.
+    ami_id_windows                = ""                          # AMI ID for the eks windows based workers. If none is provided, Terraform will search for the latest version of their EKS optimized worker AMI based on platform.
     asg_desired_capacity          = "1"                         # Desired worker capacity in the autoscaling group and changing its value will not affect the autoscaling group's desired capacity because the cluster-autoscaler manages up and down scaling of the nodes. Cluster-autoscaler add nodes when pods are in pending state and remove the nodes when they are not required by modifying the desirec_capacity of the autoscaling group. Although an issue exists in which if the value of the asg_min_size is changed it modifies the value of asg_desired_capacity.
     asg_max_size                  = "3"                         # Maximum worker capacity in the autoscaling group.
     asg_min_size                  = "1"                         # Minimum worker capacity in the autoscaling group. NOTE: Change in this paramater will affect the asg_desired_capacity, like changing its value to 2 will change asg_desired_capacity value to 2 but bringing back it to 1 will not affect the asg_desired_capacity.