diff --git a/CMakeLists.txt b/CMakeLists.txt
index bd433a7..19a2ada 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -293,7 +293,8 @@ if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR AND BUILD_TESTING)
       target_compile_options(
         fuzz_driver_msan
         PRIVATE -fsanitize=memory -fsanitize-memory-track-origins=2
-                -stdlib=libc++ -I${MSAN_TOOLCHAIN_PATH}/include/c++/v1)
+                $<$<COMPILE_LANGUAGE:CXX>:-stdlib=libc++>
+                -I${MSAN_TOOLCHAIN_PATH}/include/c++/v1)
       target_link_options(
         fuzz_driver_msan
         PRIVATE