diff --git a/server/gameserver/CMakeLists.txt b/server/gameserver/CMakeLists.txt
index f0e2247..b231a3d 100644
--- a/server/gameserver/CMakeLists.txt
+++ b/server/gameserver/CMakeLists.txt
@@ -1,17 +1,12 @@
 project(gameserver)
 cmake_minimum_required(VERSION 2.8)
 
-if (${GAME_ID})
-  message(GAME_ID: ${GAME_ID})
-else()
-  set(GAME_ID 2001)
-  message(GAME_ID: ${GAME_ID})
-endif()
+set(GAME_ID 2001)
 
 set(CMAKE_BUILD_TYPE "Debug")
 set(CMAKE_BUILD_TYPE "Release")
-set(CMAKE_CXX_FLAGS_RELEASE "-O3 -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DA8_TCP_SESSION2=1")
-set(CMAKE_CXX_FLAGS_DEBUG "-Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID} -DA8_TCP_SESSION2=1")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3 -g -std=gnu++11 -DGAME_ID=${GAME_ID}")
+set(CMAKE_CXX_FLAGS_DEBUG "-Wall -g -std=gnu++11 -DGAME_ID=${GAME_ID}")
 
 include_directories(
   AFTER
diff --git a/third_party/a8engine b/third_party/a8engine
index bb10963..d0c0321 160000
--- a/third_party/a8engine
+++ b/third_party/a8engine
@@ -1 +1 @@
-Subproject commit bb10963a71fbd0d6dd145dc7fd333b09ab708300
+Subproject commit d0c032181b8735fb55cd9900c00776bd4a253c6e