diff --git a/cmake/caches/ci/cpu.cmake b/cmake/caches/ci/cpu.cmake
index fdb002ed2f1..f8ff7413600 100644
--- a/cmake/caches/ci/cpu.cmake
+++ b/cmake/caches/ci/cpu.cmake
@@ -7,4 +7,3 @@ set(PIP_INDEX_MIRROR "https://pypi.tuna.tsinghua.edu.cn/simple" CACHE STRING "")
 set(CMAKE_BUILD_TYPE Release CACHE STRING "")
 set(CMAKE_GENERATOR Ninja CACHE STRING "")
 set(CMAKE_INTERPROCEDURAL_OPTIMIZATION OFF CACHE BOOL "")
-set(RPC_BACKEND "LOCAL" CACHE STRING "")