diff --git a/setup.py b/setup.py
index deb18ea80..e1a07a3bc 100644
--- a/setup.py
+++ b/setup.py
@@ -137,10 +137,12 @@ else:
     boosttype = 'mt'
     EXTRA_COMPILE_ARGS = [  '-DBOOST_WINDOWS',
                             '-Wno-missing-braces',
+                            '-DWIN32_LEAN_AND_MEAN',
                             '-D_WIN32_WINNT=0x0500',
-                             '-D_WIN32',
-                             '-DWIN32',
-                             '-DBOOST_ALL_NO_LIB',
+                            '-D__USE_W32_SOCKETS',
+                            '-D_WIN32',
+                            '-DWIN32',
+                            '-DBOOST_ALL_NO_LIB',
                             '-D_FILE_OFFSET_BITS=64',
                             '-DBOOST_THREAD_USE_LIB',
                             '-DTORRENT_USE_OPENSSL=1',