diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6ae698e9a987eff3ff46206463c7cec1b42b6304..3f16c74fe1ef221880bf6e1ff47414c0531c102f 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,6 @@ if(WIN32)
   include_directories(../libdap/src/win32/)
   include_directories(../3rdparty/libmemcached/)
   include_directories(../3rdparty/libmemcached/win32/)
-  include_directories(../3rdparty/wepoll/include/)
   include_directories(../3rdparty/uthash/src/)
   include_directories(../3rdparty/libjson-c/)
   include_directories(../3rdparty/curl/include/)
diff --git a/dap_chain_gdb.c b/dap_chain_gdb.c
index 221db002274817917eda075f85de33cf4e7bb0d1..3fb765384a5e0e2d3b1150b722d2b478453f0ddb 100644
--- a/dap_chain_gdb.c
+++ b/dap_chain_gdb.c
@@ -27,15 +27,12 @@
 #include <pthread.h>
 
 #ifdef _WIN32
-#undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0600
 #include <winsock2.h>
 #include <windows.h>
 #include <mswsock.h>
 #include <ws2tcpip.h>
 #include <io.h>
 #include <time.h>
-#include <wepoll.h>
 #include <pthread.h>
 #endif