diff --git a/include/ZeroTier.h b/include/ZeroTier.h
index bb22d8d..1d78588 100644
--- a/include/ZeroTier.h
+++ b/include/ZeroTier.h
@@ -76,11 +76,6 @@ typedef int socklen_t;
 #include <Windows.h>
 #endif
 
-#if defined(_MSC_VER)
-#include <BaseTsd.h>
-typedef SSIZE_T ssize_t;
-#endif
-
 //namespace ZeroTier {
 
 #ifdef __cplusplus