diff --git a/tests/bcr/.bazelrc b/tests/bcr/.bazelrc
index ab2e9ddd8..7ccbf79fb 100644
--- a/tests/bcr/.bazelrc
+++ b/tests/bcr/.bazelrc
@@ -3,4 +3,4 @@ common --experimental_isolated_extension_usages
 common --lockfile_mode=update
 common --enable_platform_specific_config
 # Required by abseil-cpp on macOS with Bazel 6.
-common:macos --cxxopt=-std=c++14
+common:macos --host_cxxopt=-std=c++14