diff --git a/aio/content/examples/http/src/app/app.component.html b/aio/content/examples/http/src/app/app.component.html
index e5d5dec909..21acf52793 100644
--- a/aio/content/examples/http/src/app/app.component.html
+++ b/aio/content/examples/http/src/app/app.component.html
@@ -1,6 +1,6 @@
 <h1>HTTP Sample</h1>
 <div>
-  <input type="checkbox" id="heroes" [checked]="toggleHeroes" (click)="toggleHeroes()">
+  <input type="checkbox" id="heroes" [checked]="showHeroes" (click)="toggleHeroes()">
   <label for="heroes">Heroes</label>
 
   <input type="checkbox" id="config" [checked]="showConfig" (click)="toggleConfig()">