diff --git a/src/components/RightContent/index.tsx b/src/components/RightContent/index.tsx
index 9a8e509b..1b1dedc7 100644
--- a/src/components/RightContent/index.tsx
+++ b/src/components/RightContent/index.tsx
@@ -1,11 +1,10 @@
 import { QuestionCircleOutlined } from '@ant-design/icons';
 import { SelectLang as UmiSelectLang } from '@umijs/max';
-
 import React from 'react';
 
 export type SiderTheme = 'light' | 'dark';
 
-export const SelectLang = () => {
+export const SelectLang: React.FC = () => {
   return (
     <UmiSelectLang
       style={{
@@ -15,7 +14,7 @@ export const SelectLang = () => {
   );
 };
 
-export const Question = () => {
+export const Question: React.FC = () => {
   return (
     <a
       href="https://pro.ant.design/docs/getting-started"