diff --git a/man/tiff2pdf.1 b/man/tiff2pdf.1
index e3560a8a..a68facd0 100644
--- a/man/tiff2pdf.1
+++ b/man/tiff2pdf.1
@@ -1,4 +1,4 @@
-.\" $Id: tiff2pdf.1,v 1.4 2005-11-02 11:07:19 dron Exp $
+.\" $Id: tiff2pdf.1,v 1.5 2006-04-20 12:07:41 dron Exp $
 .\" 
 .\"  Copyright (c) 2003 Ross Finlayson
 .\" 
@@ -199,6 +199,9 @@ Set document information subject, overrides image image description default
 .BI \-k keywords
 Set document information keywords.
 .TP
+.BI \-b
+Set PDF "Interpolate" user preference.
+.TP
 .B \-h  
 List usage reminder to stderr and exit.
 .TP