diff --git a/c/tools/brotli.c b/c/tools/brotli.c
index 557ec93..62daeef 100755
--- a/c/tools/brotli.c
+++ b/c/tools/brotli.c
@@ -28,10 +28,10 @@
 #include <sys/utime.h>
 
 #define MAKE_BINARY(FILENO) (_setmode((FILENO), _O_BINARY), (FILENO))
-
-#if !defined(__MINGW32__)
 #define STDIN_FILENO MAKE_BINARY(_fileno(stdin))
 #define STDOUT_FILENO MAKE_BINARY(_fileno(stdout))
+
+#if !defined(__MINGW32__)
 #define S_IRUSR S_IREAD
 #define S_IWUSR S_IWRITE
 #endif