diff --git a/README.md b/README.md
index 8bea94d..5cbe81f 100644
--- a/README.md
+++ b/README.md
@@ -112,4 +112,4 @@ module "fck-nat" {
 | <a name="output_security_group_id"></a> [security\_group\_id](#output\_security\_group\_id) | Deprecated. The ID of the security group used by fck-nat ENIs |
 | <a name="output_security_group_ids"></a> [security\_group\_ids](#output\_security\_group\_ids) | List of security group IDs used by fck-nat ENIs |
 | <a name="output_subnet_id"></a> [subnet\_id](#output\_subnet\_id) | Subnet ID to which the fck-nat instance is deployed into |
-| <a name="output_vpc_id"></a> [vpc\_id](#output\_vpc\_id) | VPC ID to which the fck-nat instance is deployed into |
\ No newline at end of file
+| <a name="output_vpc_id"></a> [vpc\_id](#output\_vpc\_id) | VPC ID to which the fck-nat instance is deployed into |
diff --git a/asg.tf b/asg.tf
index ba0724a..641dea1 100644
--- a/asg.tf
+++ b/asg.tf
@@ -29,6 +29,29 @@ resource "aws_autoscaling_group" "main" {
     }
   }
 
+  enabled_metrics = [
+    "GroupMinSize",
+    "GroupMaxSize",
+    "GroupDesiredCapacity",
+    "GroupInServiceInstances",
+    "GroupPendingInstances",
+    "GroupStandbyInstances",
+    "GroupTerminatingInstances",
+    "GroupTotalInstances",
+    "GroupInServiceCapacity",
+    "GroupPendingCapacity",
+    "GroupStandbyCapacity",
+    "GroupTerminatingCapacity",
+    "GroupTotalCapacity",
+    "WarmPoolDesiredCapacity",
+    "WarmPoolWarmedCapacity",
+    "WarmPoolPendingCapacity",
+    "WarmPoolTerminatingCapacity",
+    "WarmPoolTotalCapacity",
+    "GroupAndWarmPoolDesiredCapacity",
+    "GroupAndWarmPoolTotalCapacity"
+  ]
+
   timeouts {
     delete = "15m"
   }