diff --git a/lib/pages/rates/shipment_rates_calculate.dart b/lib/pages/rates/shipment_rates_calculate.dart
index 3ad1f62..7b7b3e4 100644
--- a/lib/pages/rates/shipment_rates_calculate.dart
+++ b/lib/pages/rates/shipment_rates_calculate.dart
@@ -125,6 +125,7 @@ class _ShipmentRatesCalState extends State<ShipmentRatesCal> {
       callback: (v) {
         setState(() {
           _cargoType = v;
+          _calShipmentWeight();
         });
       },
       labelKey: "cargo.type",