diff --git a/docs/io.md b/docs/io.md
index 0ba8e41..f82e6d6 100644
--- a/docs/io.md
+++ b/docs/io.md
@@ -19,6 +19,7 @@
 | cluster\_timeouts | Create, update, and delete timeout configurations for the cluster | `map(string)` | `{}` | no |
 | create\_schedule | Determines whether to create autoscaling group schedule or not | `bool` | `true` | no |
 | eks\_additional\_security\_group\_ids | EKS additional security group id | `list(string)` | `[]` | no |
+| eks\_tags | Additional tags for EKS Cluster only. | `map(any)` | `{}` | no |
 | enabled | Whether to create the resources. Set to `false` to prevent the module from creating any resources. | `bool` | `true` | no |
 | enabled\_cluster\_log\_types | A list of the desired control plane logging to enable. For more information, see https://docs.aws.amazon.com/en_us/eks/latest/userguide/control-plane-logs.html. Possible values [`api`, `audit`, `authenticator`, `controllerManager`, `scheduler`]. | `list(string)` | <pre>[<br>  "api",<br>  "audit",<br>  "authenticator",<br>  "controllerManager",<br>  "scheduler"<br>]</pre> | no |
 | endpoint\_private\_access | Indicates whether or not the Amazon EKS private API server endpoint is enabled. Default to AWS EKS resource and it is false. | `bool` | `true` | no |