diff --git a/docs/5-user-authentication.md b/docs/5-user-authentication.md
index ed17c47de..1570216d6 100644
--- a/docs/5-user-authentication.md
+++ b/docs/5-user-authentication.md
@@ -23,7 +23,7 @@ bootstrap(<MyApp>Component, [
 ]);
 ```
 
-**Example boostrap**
+**Example bootstrap**
 ```ts
 import { bootstrap } from '@angular/platform-browser-dynamic';
 import { enableProdMode } from '@angular/core';
@@ -146,4 +146,4 @@ export class RcTestAppComponent {
     });    
   }
 }
-```
\ No newline at end of file
+```