diff --git a/.github/workflows/test-namespace-darwin.yaml b/.github/workflows/test-namespace-darwin.yaml
index 98f9f324ae0d..9ae2322cd46b 100644
--- a/.github/workflows/test-namespace-darwin.yaml
+++ b/.github/workflows/test-namespace-darwin.yaml
@@ -32,9 +32,9 @@ jobs:
       # Build and test, excluding 'upload' jobs that are not required on macOS (used in reproducibility tests)
       - name: Test
         run: |
-          # Until we have a hermetic CC toolchain, tell bazel to use the "real" clang
-          # (instead of Apple's, which sometimes breaks on wasm32)
-          export CC=/opt/homebrew/opt/llvm/bin/clang
+          # Setup zig-cache
+          mkdir -p /tmp/zig-cache
+
           bazel \
             --noworkspace_rc \
             --bazelrc=./bazel/conf/.bazelrc.build --bazelrc=/tmp/bazel-cache.bazelrc \