diff --git a/README-zh_CN.md b/README-zh_CN.md
index 8b9a6b1a0f..6b99de0df8 100644
--- a/README-zh_CN.md
+++ b/README-zh_CN.md
@@ -53,7 +53,7 @@ import 'antd/dist/antd.css';  // or 'antd/dist/antd.less'
 
 tsconfig.json
 
-```
+```js
 {
   "compilerOptions": {
     "moduleResolution": "node",
diff --git a/README.md b/README.md
index a75cb77fea..67921c7264 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ Normal browsers and Internet Explorer 9+.
 
 tsconfig.json
 
-```
+```js
 {
   "compilerOptions": {
     "moduleResolution": "node",