diff --git a/build/compiler.js b/build/compiler.js
index 1e055177..7ec5f61c 100644
--- a/build/compiler.js
+++ b/build/compiler.js
@@ -83,7 +83,6 @@ tasks.buildExample = gulp.series(
     () =>
       gulp.src(`${icons}/**/*`).pipe(gulp.dest(`${exampleDir}/@vant/icons`)),
     () => {
-      gulp.watch(`${src}/**/*.ts`, tsCompiler(exampleDir, exampleConfig));
       gulp.watch(`${src}/**/*.less`, lessCompiler(exampleDir));
       gulp.watch(`${src}/**/*.wxml`, copier(exampleDir, 'wxml'));
       gulp.watch(`${src}/**/*.wxs`, copier(exampleDir, 'wxs'));
diff --git a/tsconfig.example.json b/tsconfig.example.json
index fa451210..69eb3244 100644
--- a/tsconfig.example.json
+++ b/tsconfig.example.json
@@ -1,6 +1,7 @@
 {
   "extends": "./tsconfig.json",
   "compilerOptions": {
+    "watch": true,
     "outDir": "example/dist"
   }
 }