diff --git a/public/docs/ts/latest/tutorial/toh-pt4.jade b/public/docs/ts/latest/tutorial/toh-pt4.jade
index 5af2f6df02..ee4a171267 100644
--- a/public/docs/ts/latest/tutorial/toh-pt4.jade
+++ b/public/docs/ts/latest/tutorial/toh-pt4.jade
@@ -229,7 +229,7 @@ code-example(format="." language="html").
   We don't really need a dedicated method to wrap one line.  We write it anyway:
 +makeExample('toh-4/ts/app/app.component.1.ts', 'getHeroes', 'app.component.ts (getHeroes)')(format=".")
 
-a.(id="oninit")
+<a id="oninit"></a>
 :marked
   ### The *ngOnInit* Lifecycle Hook
   `AppComponent` should fetch and display heroes without a fuss.