diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 05c08e3e..5835e2be 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,6 +26,9 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
+      - run: ls -l /usr/include/openssl/
+      - run: ls -l /usr/bin/cygss*
+
       - name: Checkout tree
         uses: actions/checkout@v4