diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4398ff0..bc2d872 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -33,4 +33,5 @@ jobs:
         with:
           publish_dir: dist
           publish_branch: release
+          cname: opendataranking.de
           github_token: ${{ secrets.GITHUB_TOKEN }}