diff --git a/docs/en/Tutorials/Part-3.md b/docs/en/Tutorials/Part-3.md
index 2eef56e79a..70deaa1503 100644
--- a/docs/en/Tutorials/Part-3.md
+++ b/docs/en/Tutorials/Part-3.md
@@ -838,7 +838,7 @@ Open `/src/app/book/book.component.html` and replace `<ng-template #abpBody> </n
       <label for="book-type">Type</label><span> * </span>
       <select class="form-control" id="book-type" formControlName="type">
         <option [ngValue]="null">Select a book type</option>
-        <option [ngValue]="bookType[type]" *ngFor="let type of bookTypes"> {%{{{ type }}}%}</option>
+        <option [ngValue]="type.value" *ngFor="let type of bookTypes"> {%{{{ type.key }}}%}</option>
       </select>
     </div>