diff --git a/packages/umi-build-dev/src/FilesGenerator.js b/packages/umi-build-dev/src/FilesGenerator.js
index 16fc4b8e0f8a..58eecbd37934 100644
--- a/packages/umi-build-dev/src/FilesGenerator.js
+++ b/packages/umi-build-dev/src/FilesGenerator.js
@@ -38,6 +38,7 @@ export default class FilesGenerator {
 
   createWatcher(path) {
     const watcher = chokidar.watch(path, {
+      cwd: this.service.cwd,
       ignored: watcherIgnoreRegExp, // ignore .dotfiles and _mock.js
       ignoreInitial: true,
     });