diff --git a/libcxx/utils/ci/run-buildbot b/libcxx/utils/ci/run-buildbot
--- a/libcxx/utils/ci/run-buildbot
+++ b/libcxx/utils/ci/run-buildbot
@@ -471,6 +471,8 @@
 bootstrapping-build)
     clean
 
+    export LLVM_SYMBOLIZER_PATH="/usr/bin/llvm-symbolizer-14"
+
     echo "--- Generating CMake"
     ${CMAKE} \
           -S "${MONOREPO_ROOT}/llvm" \