diff --git a/MD_Getc.c b/MD_Getc.c
index f07ddbd..b309534 100644
--- a/MD_Getc.c
+++ b/MD_Getc.c
@@ -2,6 +2,8 @@
 #include <stdio.h>
 #if defined(_MSC_VER) || defined(WIN32)
 #include <winsock2.h>
+#define STDIN_FILENO 0
+#define STDOUT_FILENO 1
 #else
 #include <sys/socket.h>
 #include <sys/select.h>
diff --git a/MD_Printf.c b/MD_Printf.c
index 44d9a9b..fcbccfd 100644
--- a/MD_Printf.c
+++ b/MD_Printf.c
@@ -4,6 +4,7 @@
 #if defined(_MSC_VER) || defined(WIN32)
 #include <winsock2.h>
 #include "MD_AnsiCons.h"
+#define STDOUT_FILENO 1
 #else
 #include <sys/socket.h>
 #include <unistd.h>