diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 59609f5..629dd4d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,7 @@ jobs:
           dir: .
           since: 2000-01-01
           output_dir: output-dir
-          exclude: |-
+          exclude: |
             .gitignore
             LICENSE
       - uses: peaceiris/actions-gh-pages@v3.9.3