diff --git a/.github/workflows/build_preview_pages.yml b/.github/workflows/build_preview_pages.yml
index 256fcaa72f..e7477374d1 100644
--- a/.github/workflows/build_preview_pages.yml
+++ b/.github/workflows/build_preview_pages.yml
@@ -24,7 +24,8 @@ jobs:
       - name: Build
         run: |
           npm run storybook:build -- --preview-url ./ --output-dir dist_preview/storybook
-          npm run browser:build -- --base ./ --outDir dist_preview/editor
+          # browser:buildのoutDirは/srcからの相対パスで指定する
+          npm run browser:build -- --base ./ --outDir ../dist_preview/editor
 
       - name: Upload artifact
         uses: actions/upload-artifact@v4