diff --git a/apps/api/v1/lib/validations/booking.ts b/apps/api/v1/lib/validations/booking.ts
index bd65c53501..cf9b6b25c9 100644
--- a/apps/api/v1/lib/validations/booking.ts
+++ b/apps/api/v1/lib/validations/booking.ts
@@ -41,7 +41,7 @@ export const bookingCancelSchema = z.object({
   id: z.number(),
   allRemainingBookings: z.boolean().optional(),
   cancelSubsequentBookings: z.boolean().optional(),
-  cancellationReason: z.string().min(1).optional(),
+  cancellationReason: z.string().optional().default("Not Provided"),
   seatReferenceUid: z.string().optional(),
   cancelledBy: z.string().email({ message: "Invalid email" }).optional(),
   internalNote: z