diff --git a/components/modal/confirm.tsx b/components/modal/confirm.tsx
index 08d1d9ac0a..d83d4680a1 100644
--- a/components/modal/confirm.tsx
+++ b/components/modal/confirm.tsx
@@ -70,7 +70,6 @@ export default function confirm(config) {
     (props.okCancel ? runtimeLocale.okText : runtimeLocale.justOkText);
   props.cancelText = props.cancelText || runtimeLocale.cancelText;
 
-  let d;
   function close() {
     const unmountResult = ReactDOM.unmountComponentAtNode(div);
     if (unmountResult) {