diff --git a/snappy-test.cc b/snappy-test.cc
index e43a556..b608516 100644
--- a/snappy-test.cc
+++ b/snappy-test.cc
@@ -31,6 +31,7 @@
 #include "snappy-test.h"
 
 #ifdef HAVE_WINDOWS_H
+#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #endif