diff --git a/src/molecules/select/select-async.tsx b/src/molecules/select/select-async.tsx
index c070ef5..879faf8 100644
--- a/src/molecules/select/select-async.tsx
+++ b/src/molecules/select/select-async.tsx
@@ -9,7 +9,7 @@ const ReactAsyncSelect = lazy(() => import('react-select/async') as any) as any
 
 const SelectAsyncComponent = ReactAsyncSelect.default || ReactAsyncSelect
 
-interface SelectProps<Option = unknown, IsMulti extends boolean = false>
+interface SelectProps<Option = unknown, IsMulti extends boolean>
   extends AsyncProps<Option, IsMulti, any> {
   value: Option
   onChange?: (selected) => void