diff --git a/packages/compiler-cli/test/ngtsc/env.ts b/packages/compiler-cli/test/ngtsc/env.ts
index baad8f3286..b456573d72 100644
--- a/packages/compiler-cli/test/ngtsc/env.ts
+++ b/packages/compiler-cli/test/ngtsc/env.ts
@@ -53,7 +53,7 @@ export class NgtscTestEnvironment {
 
     env.write(absoluteFrom('/tsconfig-base.json'), `{
       "compilerOptions": {
-        "emitDecoratorMetadata": true,
+        "emitDecoratorMetadata": false,
         "experimentalDecorators": true,
         "skipLibCheck": true,
         "noImplicitAny": true,
diff --git a/packages/compiler-cli/test/ngtsc/ngtsc_spec.ts b/packages/compiler-cli/test/ngtsc/ngtsc_spec.ts
index ae696115d8..f98377ea0f 100644
--- a/packages/compiler-cli/test/ngtsc/ngtsc_spec.ts
+++ b/packages/compiler-cli/test/ngtsc/ngtsc_spec.ts
@@ -4648,7 +4648,7 @@ function allTests(os: string) {
 
       env.driveMain();
       const jsContents = trim(env.getContents('test.js'));
-      expect(jsContents).toContain(`import { KeyCodes } from './keycodes';`);
+      expect(jsContents).toContain(`import * as i1 from "./keycodes";`);
       expect(jsContents).toMatch(setClassMetadataRegExp('type: i1.KeyCodes'));
     });