diff --git a/apps/web/Components/Calculation/builders/build-value.tsx b/apps/web/Components/Calculation/builders/build-value.tsx
index 0a83cad..afbe4c6 100644
--- a/apps/web/Components/Calculation/builders/build-value.tsx
+++ b/apps/web/Components/Calculation/builders/build-value.tsx
@@ -48,8 +48,8 @@ export function buildNumberValue<T>(
     return (
       <Form.Item help={help} validateStatus={validateStatus}>
         <Component
-          onChange={(v = 0) => {
-            setValue(v);
+          onChange={(inputValue: number | null) => {
+            setValue(inputValue || 0);
           }}
           disabled={status === 'Disabled'}
           value={value}