diff --git a/ChangeLog b/ChangeLog
index d62afff9..4f0f778a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-01-19  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
+
+	Added doc for --bt-hash-check-seed option.
+	* doc/aria2c.1.txt
+	
 2009-01-19  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
 
 	Documented exit codes.
diff --git a/doc/aria2c.1 b/doc/aria2c.1
index 83f33209..75d4a4c8 100644
--- a/doc/aria2c.1
+++ b/doc/aria2c.1
@@ -406,6 +406,17 @@ Print file listing of \&.torrent or \&.metalink file and exit\&. In case of \&.t
 .RE
 .SS "BitTorrent Specific Options"
 .PP
+\fB\-\-bt\-hash\-check\-seed\fR[=\fItrue\fR|\fIfalse\fR]
+.RS 4
+If
+\fItrue\fR
+is given, after hash check using
+\fB\-\-check\-integrity\fR
+option and file is complete, continue to seed file\&. If you want to check file and download it only when it is damaged or incomplete, set this option to
+\fIfalse\fR\&. This option has effect only on BitTorrent download\&. Default:
+\fItrue\fR
+.RE
+.PP
 \fB\-\-bt\-max\-open\-files\fR=NUM
 .RS 4
 Specify maximum number of files to open in each BitTorrent download\&. Default:
diff --git a/doc/aria2c.1.html b/doc/aria2c.1.html
index 2352c8ad..ddfbd364 100644
--- a/doc/aria2c.1.html
+++ b/doc/aria2c.1.html
@@ -926,6 +926,18 @@ writes the piece to the appropriate files.</td>
 <h3 id="_bittorrent_specific_options">BitTorrent Specific Options</h3><div style="clear:left"></div>
 <div class="vlist"><dl>
 <dt>
+<strong>--bt-hash-check-seed</strong>[=<em>true</em>|<em>false</em>]
+</dt>
+<dd>
+<p>
+ If <em>true</em> is given, after hash check using <strong>--check-integrity</strong> option and
+ file is complete, continue to seed file. If you want to check file
+ and download it only when it is damaged or incomplete, set this
+ option to <em>false</em>.  This option has effect only on BitTorrent download.
+ Default: <em>true</em>
+</p>
+</dd>
+<dt>
 <strong>--bt-max-open-files</strong>=NUM
 </dt>
 <dd>
@@ -2152,7 +2164,7 @@ files in the program, then also delete it here.</p></div>
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2009-01-19 22:45:44 JST
+Last updated 2009-01-19 22:55:07 JST
 </div>
 </div>
 </body>
diff --git a/doc/aria2c.1.txt b/doc/aria2c.1.txt
index 7bd507fc..5e285711 100644
--- a/doc/aria2c.1.txt
+++ b/doc/aria2c.1.txt
@@ -296,6 +296,13 @@ writes the piece to the appropriate files.
 
 BitTorrent Specific Options
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+*--bt-hash-check-seed*[='true'|'false']::
+ If 'true' is given, after hash check using *--check-integrity* option and
+ file is complete, continue to seed file. If you want to check file
+ and download it only when it is damaged or incomplete, set this
+ option to 'false'.  This option has effect only on BitTorrent download.
+ Default: 'true'
+
 *--bt-max-open-files*=NUM::
   Specify maximum number of files to open in each BitTorrent download.
   Default: '100'