diff --git a/src/xxd/xxd.c b/src/xxd/xxd.c
index b9e42f6..c558426 100644
--- a/src/xxd/xxd.c
+++ b/src/xxd/xxd.c
@@ -64,6 +64,9 @@
 # define _CRT_SECURE_NO_DEPRECATE
 # define _CRT_NONSTDC_NO_DEPRECATE
 #endif
+#if !defined(CYGWIN) && (defined(CYGWIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__))
+# define CYGWIN
+#endif
 
 #include <stdio.h>
 #ifdef VAXC
@@ -77,7 +80,8 @@
 #if !defined(OS2) && defined(__EMX__)
 # define OS2
 #endif
-#if defined(MSDOS) || defined(WIN32) || defined(OS2) || defined(__BORLANDC__)
+#if defined(MSDOS) || defined(WIN32) || defined(OS2) || defined(__BORLANDC__) \
+  || defined(CYGWIN)
 # include <io.h>	/* for setmode() */
 #else
 # ifdef UNIX
@@ -150,9 +154,6 @@
 # endif
 #endif
 
-#if !defined(CYGWIN) && (defined(CYGWIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__))
-# define CYGWIN
-#endif
 #if defined(MSDOS) || defined(WIN32) || defined(OS2)
 # define BIN_READ(yes)  ((yes) ? "rb" : "rt")
 # define BIN_WRITE(yes) ((yes) ? "wb" : "wt")