diff --git a/libs/payments/ui/src/lib/nestapp/validators/GetInterstitialOfferContentActionResult.ts b/libs/payments/ui/src/lib/nestapp/validators/GetInterstitialOfferContentActionResult.ts
index 120b6bc1a72..6105409ea72 100644
--- a/libs/payments/ui/src/lib/nestapp/validators/GetInterstitialOfferContentActionResult.ts
+++ b/libs/payments/ui/src/lib/nestapp/validators/GetInterstitialOfferContentActionResult.ts
@@ -44,8 +44,9 @@ export class GetInterstitialOfferContentActionResult {
   @Type(() => PageContent)
   pageContent!: PageContent | null;
 
+  @IsOptional()
   @IsString()
-  reason!: string;
+  reason?: string | null;
 
   @IsOptional()
   @IsString()