diff --git a/avrdude/ChangeLog b/avrdude/ChangeLog
index 0cfc7d85..61af3fa8 100644
--- a/avrdude/ChangeLog
+++ b/avrdude/ChangeLog
@@ -1,3 +1,8 @@
+2003-04-23  Eric B. Weddington  <eric@umginc.net>
+
+	* fileio.c: Fix for bug #3293. Set correct open mode for raw format
+	for Windows.
+
 2003-04-18  Theodore A. Roth  <troth@openavr.org>
 
 	* configure.ac: Add cvs suffix back to version.
diff --git a/avrdude/fileio.c b/avrdude/fileio.c
index d70e427a..f2251d27 100644
--- a/avrdude/fileio.c
+++ b/avrdude/fileio.c
@@ -950,6 +950,21 @@ int fileio(int op, char * filename, FILEFMT format,
   if (rc < 0)
     return -1;
 
+  #if defined(__CYGWIN__)
+  /* Open Raw Binary format in binary mode on Windows.*/
+  if(format == FMT_RBIN)
+  {
+      if(fio.op == FIO_READ)
+      {
+          fio.mode = "rb";
+      }
+      if(fio.op == FIO_WRITE)
+      {
+          fio.mode = "wb";
+      }
+  }
+  #endif
+
   /* point at the requested memory buffer */
   buf = mem->buf;
   if (fio.op == FIO_READ)