diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0a63d6b1..3370d450 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,6 +12,8 @@ set (CMAKE_CXX_STANDARD 11)
 set (CXX_STANDARD_REQUIRED ON)
 set (CMAKE_CXX_EXTENSIONS OFF)
 
+option (BUILD_DEMO OFF)
+
 if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
   set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 endif()
@@ -274,3 +276,8 @@ if (USE_WS OR USE_TEST)
     add_subdirectory(test)
   endif()
 endif()
+
+if (BUILD_DEMO) 
+  add_executable(demo main.cpp)
+  target_link_libraries(demo ixwebsocket) 
+endif()