diff --git a/.github/workflows/build_windows_cygwin.yml b/.github/workflows/build_windows_cygwin.yml
index fb48da4c..d472b187 100644
--- a/.github/workflows/build_windows_cygwin.yml
+++ b/.github/workflows/build_windows_cygwin.yml
@@ -39,6 +39,7 @@ jobs:
       with:
          fetch-depth: 0
     - name: Hack around https://github.com/actions/checkout/issues/290
+      shell: powershell
       run: |
         git fetch --tags --force