diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 2fc0641..cee584d 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -51,7 +51,9 @@ jobs:
         run: yarn install
 
       - name: Build CSS
-        run: bundle exec rake css:build
+        run: |
+          bundle exec rake css:build
+          test -s app/assets/builds/application.css
 
       - name: Run tests
         run: bundle exec rspec