diff --git a/main.tf b/main.tf
index 36d9d05..9af341e 100644
--- a/main.tf
+++ b/main.tf
@@ -253,7 +253,7 @@ resource "aws_appautoscaling_target" "ecs" {
 
   max_capacity       = lookup(var.appautoscaling_settings, "max_capacity", var.desired_count)
   min_capacity       = lookup(var.appautoscaling_settings, "min_capacity", var.desired_count)
-  resource_id        = "service/${var.cluster_id}/${aws_ecs_service.this.name}"
+  resource_id        = "service/${var.cluster_name}/${aws_ecs_service.this.name}"
   scalable_dimension = "ecs:service:DesiredCount"
   service_namespace  = "ecs"
 }
diff --git a/variables.tf b/variables.tf
index e0e8a03..6e2548c 100644
--- a/variables.tf
+++ b/variables.tf
@@ -8,6 +8,10 @@ variable "cluster_id" {
   type        = string
 }
 
+variable "cluster_name" {
+  description = "The ECS cluster name"
+}
+
 variable "container_port" {
   description = "The port used by the app within the container."
   type        = number