diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 822af66c..bcd7fff9 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -45,8 +45,9 @@ jobs:
         with:
           fetch-depth: 0
       - uses: actions/setup-python@v5
+      - name: Test if .qubesbuilder is up-to-date
+        run: sh -x ./scripts/qubesbuilder-gen.sh test
       - uses: pre-commit/action@v3.0.1
-
       - name: Lint commits
         # yamllint disable-line rule:line-length
         run: |