diff --git a/tools/tiffdump.c b/tools/tiffdump.c
index 902c8f75..f1e4e6c9 100644
--- a/tools/tiffdump.c
+++ b/tools/tiffdump.c
@@ -1,4 +1,4 @@
-/* $Id: tiffdump.c,v 1.15 2007-07-04 11:31:36 dron Exp $ */
+/* $Id: tiffdump.c,v 1.16 2008-01-01 15:45:14 fwarmerdam Exp $ */
 
 /*
  * Copyright (c) 1988-1997 Sam Leffler
@@ -52,6 +52,10 @@
 # define O_BINARY	0
 #endif
 
+#if defined(_WIN32)
+typedef	TIFF_SSIZE_T	ssize_t;
+#endif
+
 static union
 {
 	TIFFHeaderClassic classic;