diff --git a/packages/examples/core/ts/pipes/simple_truncate.ts b/packages/examples/core/ts/pipes/simple_truncate.ts
index cf13f99663..4f30cd447f 100644
--- a/packages/examples/core/ts/pipes/simple_truncate.ts
+++ b/packages/examples/core/ts/pipes/simple_truncate.ts
@@ -5,12 +5,12 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-
+// #docregion
 import {Pipe, PipeTransform} from '@angular/core';
 
 @Pipe({name: 'truncate'})
 export class TruncatePipe implements PipeTransform {
-  transform(value: any) {
+  transform(value: string) {
     return value.split(' ').slice(0, 2).join(' ') + '...';
   }
 }
diff --git a/packages/examples/core/ts/pipes/truncate.ts b/packages/examples/core/ts/pipes/truncate.ts
index c37eaa96b6..8e6ac5217f 100644
--- a/packages/examples/core/ts/pipes/truncate.ts
+++ b/packages/examples/core/ts/pipes/truncate.ts
@@ -5,12 +5,12 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-
+// #docregion
 import {Pipe, PipeTransform} from '@angular/core';
 
 @Pipe({name: 'truncate'})
 export class TruncatePipe implements PipeTransform {
-  transform(value: any, length: number, symbol: string) {
+  transform(value: string, length: number, symbol: string) {
     return value.split(' ').slice(0, length).join(' ') + symbol;
   }
 }