diff --git a/src/controllers/09-verification-controller.ts b/src/controllers/09-verification-controller.ts
index db42366..b607ee8 100644
--- a/src/controllers/09-verification-controller.ts
+++ b/src/controllers/09-verification-controller.ts
@@ -139,8 +139,8 @@ export class verificationController extends Controller {
       });
 
       return dataCustomer;
-    } else {
-      return "OTP ไม่ถูกต้อง";
     }
+
+    throw new HttpError(HttpStatus.BAD_REQUEST, "Invalid OTP", "invalidOTP");
   }
 }