diff --git a/CMakeLists.txt b/CMakeLists.txt
index b3f7079d6..dd2a305ef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,9 @@
 cmake_minimum_required(VERSION 3.10)
+
+set(CMAKE_C_COMPILER gcc-9)
+set(CMAKE_CXX_COMPILER g++-9)
+set(CMAKE_CXX_STANDARD 17)
+
 project(yaLanTingLibs
         VERSION 0.2.9
         DESCRIPTION "yaLanTingLibs"
@@ -6,6 +11,9 @@ project(yaLanTingLibs
         LANGUAGES CXX
         )
 
+
+
+
 # load pack finder
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Find/)
 
@@ -31,4 +39,4 @@ if(CMAKE_PROJECT_NAME STREQUAL "yaLanTingLibs") # if ylt is top-level project
 endif()
 
 
-# add_subdirectory(src/struct_pb/protoc-plugin)
+add_subdirectory(src/struct_pb/protoc-plugin)
diff --git a/src/struct_pb/protoc-plugin/CMakeLists.txt b/src/struct_pb/protoc-plugin/CMakeLists.txt
index 82aaaee16..bf6318b0b 100644
--- a/src/struct_pb/protoc-plugin/CMakeLists.txt
+++ b/src/struct_pb/protoc-plugin/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.10)
-set(CMAKE_C_COMPILER gcc-9)
-set(CMAKE_CXX_COMPILER g++-9)
-set(CMAKE_CXX_STANDARD 17)
+# set(CMAKE_C_COMPILER gcc-9)
+# set(CMAKE_CXX_COMPILER g++-9)
+# set(CMAKE_CXX_STANDARD 17)
 
 project(protoc-gen-struct_pb)