diff --git a/.github/workflows/test_code.yml b/.github/workflows/test_code.yml
index f456132c3..b00258552 100644
--- a/.github/workflows/test_code.yml
+++ b/.github/workflows/test_code.yml
@@ -46,6 +46,7 @@ jobs:
           sudo apt install doxygen
       - name: Test documentation
         run: |
+          cd Doc
           doxygen SignalIntegrityLinux
   release_pypi:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')