diff --git a/public/docs/_examples/cb-dynamic-form/ts/app/question-control.service.ts b/public/docs/_examples/cb-dynamic-form/ts/app/question-control.service.ts
index e95dbff462..d4cf25951c 100644
--- a/public/docs/_examples/cb-dynamic-form/ts/app/question-control.service.ts
+++ b/public/docs/_examples/cb-dynamic-form/ts/app/question-control.service.ts
@@ -11,7 +11,7 @@ export class QuestionControlService {
     let group = {};
 
     questions.forEach(question => {
-      group[question.key] = question.required ? [question.value || '', Validators.required] : [];
+      group[question.key] = question.required ? [question.value || '', Validators.required] : [question.value || ''];
     });
     return this.fb.group(group);
   }