diff --git a/LocalStack/Compute/LabEc2/main.tf b/LocalStack/Compute/LabEc2/main.tf
index ee155bf..a2b7e14 100644
--- a/LocalStack/Compute/LabEc2/main.tf
+++ b/LocalStack/Compute/LabEc2/main.tf
@@ -24,7 +24,7 @@ module "TestInstance" {
     type                  = "gp3"
     size                  = 20
     delete_on_termination = true
-    kms_key_id            = module.KmsKeys.cmks["allpurpose"].arn
+    kms_key_id            = module.KmsKeys.cmks.allpurpose.arn
   }
   metadata_options = {
     http_put_response_hop_limit = 2