diff --git a/packages/monocdk/rosetta/basic-portfolio.ts-fixture b/packages/monocdk/rosetta/basic-portfolio.ts-fixture
index d8925e6645aa7..3029872ea1f0d 100644
--- a/packages/monocdk/rosetta/basic-portfolio.ts-fixture
+++ b/packages/monocdk/rosetta/basic-portfolio.ts-fixture
@@ -1,9 +1,9 @@
 // Fixture with packages imported, but nothing else
-import { Construct, Stack } from '@aws-cdk/core';
+import * as cdk from '@aws-cdk/core';
 import * as servicecatalog from '@aws-cdk/aws-servicecatalog';
 
-class Fixture extends Stack {
-  constructor(scope: Construct, id: string) {
+class Fixture extends cdk.Stack {
+  constructor(scope: cdk.Construct, id: string) {
     super(scope, id);
 
     const portfolio = new servicecatalog.Portfolio(this, "MyFirstPortfolio", {