diff --git a/src/controllers/03-customer-controller.ts b/src/controllers/03-customer-controller.ts
index 367cd91..8b771d8 100644
--- a/src/controllers/03-customer-controller.ts
+++ b/src/controllers/03-customer-controller.ts
@@ -63,7 +63,7 @@ export type CustomerCreate = {
     authorizedCapital?: string;
     authorizedName?: string;
     authorizedNameEN?: string;
-    customerName?: string;
+    customerName: string;
 
     customerId?: string;