diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e10b6e4..6994bba 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,6 +18,8 @@ jobs:
         run: cd ${{ github.workspace }}
       - name: build
         run: make
+      - name: add custom domain
+        run: echo "lipu-sona.pona.la" > public/CNAME
       - name: deploy
         uses: peaceiris/actions-gh-pages@v3
         with: