diff --git a/src/app/showcase/doc/multiselect/virtualscrolldoc.ts b/src/app/showcase/doc/multiselect/virtualscrolldoc.ts
index 0f1ab23925d..56ef5821fbe 100644
--- a/src/app/showcase/doc/multiselect/virtualscrolldoc.ts
+++ b/src/app/showcase/doc/multiselect/virtualscrolldoc.ts
@@ -97,7 +97,6 @@ export class MultiSelectVirtualScrollDemo {
     onSelectAllChange(event) {
         this.selectedItems = event.checked ? [...this.items] : [];
         this.selectAll = event.checked;
-        event.updateModel(this.selectedItems, event.originalEvent)
     }
 
     onChange(event) {