diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 79c74b8..ceb2caf 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -98,7 +98,7 @@ jobs:
         id: check-changes
         if: github.repository == 'mlocati/unipoints' && github.event_name == 'push' && github.ref == 'refs/heads/main'
         run: |
-            if git diff --exit-code --name-status; then
+            if ! git diff --exit-code --name-status; then
                 echo "commit=yes" >>"$GITHUB_OUTPUT"
             fi
       -