diff --git a/bookie/src/app/sales/bills/voucher-type.ts b/bookie/src/app/sales/bills/voucher-type.ts
index bc0e39f..e962803 100644
--- a/bookie/src/app/sales/bills/voucher-type.ts
+++ b/bookie/src/app/sales/bills/voucher-type.ts
@@ -4,4 +4,5 @@ export enum VoucherType {
   NoCharge = 2,
   Staff = 4,
   Void = 8,
+  Cancel = 16,
 }