diff --git a/docs/curl.1 b/docs/curl.1
index c09d392ea5..705b7fd42e 100644
--- a/docs/curl.1
+++ b/docs/curl.1
@@ -21,7 +21,7 @@
 .\" * $Id$
 .\" **************************************************************************
 .\"
-.TH curl 1 "10 July 2008" "Curl 7.19.0" "Curl Manual"
+.TH curl 1 "28 November 2009" "Curl 7.20.0" "Curl Manual"
 .SH NAME
 curl \- transfer a URL
 .SH SYNOPSIS
@@ -1181,6 +1181,14 @@ TTYPE=<term> Sets the terminal type.
 XDISPLOC=<X display> Sets the X display location.
 
 NEW_ENV=<var,val> Sets an environment variable.
+.IP "--tftp-blksize <value>"
+(TFTP) Set TFTP BLKSIZE option (must be >512). This is the block size that
+curl will try to use when tranferring data to or from a TFTP server. By
+default 512 bytes will be used.
+
+If this option is used several times, the last one will be used.
+
+(Added in 7.20.0)
 .IP "-T/--upload-file <file>"
 This transfers the specified local file to the remote URL. If there is no file
 part in the specified URL, Curl will append the local file name. NOTE that you