diff --git a/src/app/showcase/doc/multiselect/templatedoc.ts b/src/app/showcase/doc/multiselect/templatedoc.ts
index 9fd37524d41..f3b888088b6 100644
--- a/src/app/showcase/doc/multiselect/templatedoc.ts
+++ b/src/app/showcase/doc/multiselect/templatedoc.ts
@@ -151,7 +151,7 @@ export class MultiSelectTemplateDemo implements OnInit {
 
     selectedCountries!: Country[];
 
-    constructor() {
+    ngOnInit() {
         this.countries = [
             { name: 'Australia', code: 'AU' },
             { name: 'Brazil', code: 'BR' },