diff --git a/sample/CMakeLists.txt b/sample/CMakeLists.txt
new file mode 100644
index 0000000..e396fb9
--- /dev/null
+++ b/sample/CMakeLists.txt
@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 3.10)
+project(sample)
+
+add_executable(string_obfs string_obfs.cpp)