diff --git a/src/binding.cc b/src/binding.cc
index 0172ae8..4ddca52 100644
--- a/src/binding.cc
+++ b/src/binding.cc
@@ -1,5 +1,7 @@
 #include <cerrno>
 #ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
 #include <io.h>
 #include <processthreadsapi.h>
 #else