diff --git a/tools/ci/amd64/clang/msan.blacklist b/tools/ci/amd64/clang/msan.blacklist
index b6bf9fc..70cabda 100644
--- a/tools/ci/amd64/clang/msan.blacklist
+++ b/tools/ci/amd64/clang/msan.blacklist
@@ -1 +1 @@
-src:*
+src:*/surface/private/linux/system.cpp*
diff --git a/tools/ci/amd64/clang/msan.sh b/tools/ci/amd64/clang/msan.sh
index ba63752..37a566f 100755
--- a/tools/ci/amd64/clang/msan.sh
+++ b/tools/ci/amd64/clang/msan.sh
@@ -37,6 +37,8 @@ cmake . \
 -lc++abi" \
 && cmake --build ./build --target='surface_tests' -j`nproc`
 
+export MSAN_OPTIONS="fast_unwind_on_malloc=0:verbosity=1"
+export MSAN_SYMBOLIZER_PATH="$(which llvm-symbolizer)"
 for test in $(find ./build -type f -name '*_tests' -executable); do
   echo "Running $test"
   "$test"