diff --git a/src/controllers/05-quotation-controller.ts b/src/controllers/05-quotation-controller.ts
index 08c0c3b..9ae2ae1 100644
--- a/src/controllers/05-quotation-controller.ts
+++ b/src/controllers/05-quotation-controller.ts
@@ -216,7 +216,7 @@ export class QuotationController extends Controller {
           },
         },
       ]),
-      isDebitNote: hasCancel && cancelIncludeDebitNote ? true : false,
+      isDebitNote: hasCancel && cancelIncludeDebitNote ? undefined : false,
       code,
       payCondition,
       registeredBranch: isSystem(req.user) ? undefined : { OR: permissionCond(req.user) },