diff --git a/.github/workflows/osrm-backend.yml b/.github/workflows/osrm-backend.yml
index fdebe1da4..bfad08465 100644
--- a/.github/workflows/osrm-backend.yml
+++ b/.github/workflows/osrm-backend.yml
@@ -464,7 +464,8 @@ jobs:
         echo "CXX=${CXXCOMPILER}" >> $GITHUB_ENV
         if [[ "${RUNNER_OS}" == "macOS" ]]; then
           # missing from GCC path, needed for conan builds of libiconv for example.
-           sudo xcode-select --switch /Library/Developer/CommandLineTools
+          sudo xcode-select --switch /Library/Developer/CommandLineTools
+          ls -al /Library/Developer/CommandLineTools/SDKs
           echo "LIBRARY_PATH=${LIBRARY_PATH}:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib" >> $GITHUB_ENV
         fi