diff --git a/.github/workflows/build-spack.yml b/.github/workflows/build-spack.yml
index 2b81fda78f..1035083d59 100644
--- a/.github/workflows/build-spack.yml
+++ b/.github/workflows/build-spack.yml
@@ -143,7 +143,7 @@ jobs:
         run: |
           if [ "${{github.event_name}}" == "schedule" ]; then
             echo "Full clang-tidy check on scheduled run."
-            ninja -k0
+            ninja -Cbuild -k0
             exit $?
           fi
           BASE=$(git merge-base origin/${BASE_REF} HEAD)