diff --git a/contrib/tiflash-proxy-cmake/CMakeLists.txt b/contrib/tiflash-proxy-cmake/CMakeLists.txt
index e243ecba37c..e3e2df379a1 100644
--- a/contrib/tiflash-proxy-cmake/CMakeLists.txt
+++ b/contrib/tiflash-proxy-cmake/CMakeLists.txt
@@ -4,7 +4,11 @@ file(GLOB_RECURSE _TIFLASH_PROXY_SRCS "${_TIFLASH_PROXY_SOURCE_DIR}/*.rs")
 list(FILTER _TIFLASH_PROXY_SRCS EXCLUDE REGEX ${_TIFLASH_PROXY_SOURCE_DIR}/target/.*)
 
 # use `CFLAGS=-w CXXFLAGS=-w` to inhibit warning messages.
-set(TIFLASH_RUST_ENV CMAKE=${CMAKE_COMMAND} CFLAGS=-w CXXFLAGS=-w)
+if (TIFLASH_LLVM_TOOLCHAIN)
+    set(TIFLASH_RUST_ENV CMAKE=${CMAKE_COMMAND} "CFLAGS=-w -fuse-ld=lld" "CXXFLAGS=-w -fuse-ld=lld -stdlib=libc++")
+else()
+    set(TIFLASH_RUST_ENV CMAKE=${CMAKE_COMMAND} CFLAGS=-w CXXFLAGS=-w)
+endif()
 
 if(TIFLASH_LLVM_TOOLCHAIN AND USE_LIBCXX)
     set(TIFLASH_RUST_LINKER ${CMAKE_CURRENT_BINARY_DIR}/tiflash-linker)