diff --git a/aio/content/examples/universal/src/app/hero.service.ts b/aio/content/examples/universal/src/app/hero.service.ts
index 5519f1c105..5762d04f09 100644
--- a/aio/content/examples/universal/src/app/hero.service.ts
+++ b/aio/content/examples/universal/src/app/hero.service.ts
@@ -123,6 +123,6 @@ export class HeroService {
 
   /** Log a HeroService message with the MessageService */
   private log(message: string) {
-    this.messageService.add('HeroService: ' + message);
+    this.messageService.add(`HeroService: ${message}`);
   }
 }