diff --git a/server/wsproxy/CMakeLists.txt b/server/wsproxy/CMakeLists.txt
index ec1ac3f..536a6fa 100644
--- a/server/wsproxy/CMakeLists.txt
+++ b/server/wsproxy/CMakeLists.txt
@@ -15,6 +15,13 @@ else()
   message(MASTER_MODE: 0)
 endif()
 
+if (${ASYNC_TCPCLIENT})
+  message(ASYNC_TCPCLIENT: 1)
+else()
+  set(ASYNC_TCPCLIENT 0)
+  message(ASYNC_TCPCLIENT: 0)
+endif()
+
 if (${RELEASE})
   set(CMAKE_BUILD_TYPE "Release")
   message("release mode")
@@ -22,8 +29,8 @@ else()
   set(CMAKE_BUILD_TYPE "Debug")
   message("debug mode")
 endif()
-set(CMAKE_CXX_FLAGS_RELEASE "-O3 -Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DMASTER_MODE=${MASTER_MODE} -DNDEBUG")
-set(CMAKE_CXX_FLAGS_DEBUG "-Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DMASTER_MODE=${MASTER_MODE} -DDEBUG")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3 -Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DMASTER_MODE=${MASTER_MODE} -DASYNC_TCPCLIENT=${ASYNC_TCPCLIENT} -DNDEBUG")
+set(CMAKE_CXX_FLAGS_DEBUG "-Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DMASTER_MODE=${MASTER_MODE} -DASYNC_TCPCLIENT=${ASYNC_TCPCLIENT} -DDEBUG")
 
 include_directories(
   AFTER