Terraform EKS AWS module ignoring disk_size in one of node pool

I use the terraform-aws-modules/eks/aws and have a node pools inside
eks_managed_node_groups = {}

on my one node pool, i have this

 eks_managed_node_groups = {
    gitlab-runner = {
      name = "gitlab-runner"
      instance_types = ["c5.xlarge", "c5.2xlarge", "c5.4xlarge"]
      disk_size = 50

i expect this one particular pool to have a different disk_size than the default. But when I plan the terraform, it says:

No changes. Your infrastructure matches the configuration.

Seems like it ignores the configuration :frowning: