diff --git a/src/controllers/05-quotation-controller.ts b/src/controllers/05-quotation-controller.ts
index 869f5ef..c2547db 100644
--- a/src/controllers/05-quotation-controller.ts
+++ b/src/controllers/05-quotation-controller.ts
@@ -40,7 +40,7 @@ type QuotationCreate = {
   payCondition: PayCondition;
 
   paySplitCount?: number;
-  paySplit?: { name?: string; amount: number }[];
+  paySplit?: { name?: string | null; amount: number }[];
 
   payBillDate?: Date;
 
@@ -98,7 +98,7 @@ type QuotationUpdate = {
   payCondition?: PayCondition;
 
   paySplitCount?: number;
-  paySplit?: { name?: string; amount: number }[];
+  paySplit?: { name?: string | null; amount: number }[];
 
   payBillDate?: Date;