diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6f5bf147..bb3fd5d9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -108,3 +108,5 @@ jobs:
         working-directory: ./python
       - run: python -m mypy.stubtest pyoxigraph  --allowlist=mypy_allowlist.txt
         working-directory: ./python
+      - run: python -m mypy generate_stubs.py tests
+        working-directory: ./python