TranslatePipe in @App does not work

I’m trying to use pipes for translation in ionic2. When using it in @Page it works as expected but as soon trying to use a pipe added directly in @App it’s not shown (ouptut is empty). Is “pipes” attribute not supported in @App?

  templateUrl: 'build/app.html',
  pipes: [TranslatePipe]  

Part of app.html

<ion-menu id="leftMenu" [content]="content">


      <button ion-item *ngFor="#p of pages" (click)="openPage(p)">
        {{ p.title | translate }}


Complete example is found on github ->

Thanks for help.