diff --git a/tests/components/ct-angular/src/components/button.component.ts b/tests/components/ct-angular/src/components/button.component.ts
index ab799244bb..c29bf21ecc 100644
--- a/tests/components/ct-angular/src/components/button.component.ts
+++ b/tests/components/ct-angular/src/components/button.component.ts
@@ -8,6 +8,6 @@ import { Component, EventEmitter, Input, Output } from '@angular/core';
   `
 })
 export class ButtonComponent {
-  @Input() title!: string;
+  @Input({required: true}) title!: string;
   @Output() submit = new EventEmitter();
 }