diff --git a/.github/workflows/osrm-backend.yml b/.github/workflows/osrm-backend.yml
index 813a28a13..5a81b4c56 100644
--- a/.github/workflows/osrm-backend.yml
+++ b/.github/workflows/osrm-backend.yml
@@ -521,9 +521,13 @@ jobs:
           sudo apt-get update -y && sudo apt-get install "clang++-${CLANG_VERSION}"
           echo "XXX /usr/bin/clang++-${CLANG_VERSION}.0"
           ls /usr/bin/
-          sudo update-alternatives --install /usr/bin/clang++ clang++ "/usr/bin/clang++-${CLANG_VERSION}.0" 10000000
-          sudo update-alternatives --install /usr/bin/clang clang "/usr/bin/clang-${CLANG_VERSION}.0" 10000000
-
+          if [[ "${CLANG_VERSION}" = "6" ]]; then
+            sudo update-alternatives --install /usr/bin/clang++ clang++ "/usr/bin/clang++-${CLANG_VERSION}.0" 10000000
+            sudo update-alternatives --install /usr/bin/clang clang "/usr/bin/clang-${CLANG_VERSION}.0" 10000000
+          else
+            sudo update-alternatives --install /usr/bin/clang++ clang++ "/usr/bin/clang++-${CLANG_VERSION}" 10000000
+            sudo update-alternatives --install /usr/bin/clang clang "/usr/bin/clang-${CLANG_VERSION}" 10000000
+          fi
           # we only enable lto for release builds
           # and therefore don't need to us ld.gold or llvm tools for linking
           # for debug builds