diff --git a/src/components/app/app.ts b/src/components/app/app.ts
index e7d26f2..33b19b7 100644
--- a/src/components/app/app.ts
+++ b/src/components/app/app.ts
@@ -11,6 +11,8 @@ export default class App extends Vue
 
     public courses = null;
 
+    public selectedTab: string = "";
+
     /**
      * This is called when the user logs in.
      *