diff --git a/apps/scandic-web/server/routers/booking/output.ts b/apps/scandic-web/server/routers/booking/output.ts
index 0b534f814..ddb0a8130 100644
--- a/apps/scandic-web/server/routers/booking/output.ts
+++ b/apps/scandic-web/server/routers/booking/output.ts
@@ -198,7 +198,6 @@ export const bookingConfirmationSchema = z
         createDateTime: z.date({ coerce: true }),
         currencyCode: z.string(),
         guest: guestSchema,
-        isGuaranteedForLateArrival: z.boolean().optional(),
         linkedReservations: nullableArrayObjectValidator(
           linkedReservationSchema
         ),