diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 135aa7f..27c7acd 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,9 +1,17 @@
 cmake_minimum_required(VERSION 3.0)
 project(test)
 
+option(BUILD_C "build hello world in C Language" OFF)
+option(BUILD_CXX "build hello world in CXX Language" ON)
 option(BUILD_TXT "build hello world txt file" OFF)
 
-add_executable(hello_world hello_world.cpp)
+if(BUILD_C)
+  add_executable(hello_world_c hello_world.c)
+endif()
+
+if(BUILD_CXX)
+  add_executable(hello_world hello_world.cpp)
+endif()
 
 if(BUILD_TXT)
   add_custom_target(
diff --git a/test/hello_world.c b/test/hello_world.c
new file mode 100644
index 0000000..7791fbb
--- /dev/null
+++ b/test/hello_world.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main() {
+  printf("Hello world!\n");
+  return 0;
+}