diff --git a/ChangeLog b/ChangeLog
index 734d2323..4d1d1fd4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-03-22  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
+
+	Documented --bt-tracker-interval option in man page.
+	* doc/aria2c.1.txt
+
 2009-03-20  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
 
 	Added an option to specify the interval between tracker requests.
diff --git a/doc/aria2c.1 b/doc/aria2c.1
index d71d3c01..5b1d2f85 100644
--- a/doc/aria2c.1
+++ b/doc/aria2c.1
@@ -1,11 +1,11 @@
 .\"     Title: aria2c
 .\"    Author: 
 .\" Generator: DocBook XSL Stylesheets v1.73.2 <http://docbook.sf.net/>
-.\"      Date: 03/13/2009
+.\"      Date: 03/22/2009
 .\"    Manual: 
 .\"    Source: 
 .\"
-.TH "ARIA2C" "1" "03/13/2009" "" ""
+.TH "ARIA2C" "1" "03/22/2009" "" ""
 .\" disable hyphenation
 .nh
 .\" disable justification (adjust text to left margin only)
@@ -495,6 +495,14 @@ Seed previously downloaded files without verifying piece hashes\&. Default:
 \fIfalse\fR
 .RE
 .PP
+\fB\-\-bt\-tracker\-interval\fR=SEC
+.RS 4
+Set the interval in seconds between tracker requests\&. This completely overrides interval value and aria2 just uses this value and ignores the minInterval and interval value in the response of tracker\&. If
+\fI0\fR
+is set, aria2 determines interval based on the response of tracker and the download progress\&. Default:
+\fI0\fR
+.RE
+.PP
 \fB\-\-dht\-entry\-point\fR=HOST:PORT
 .RS 4
 Set host and port as an entry point to DHT network\&.
diff --git a/doc/aria2c.1.html b/doc/aria2c.1.html
index 7268b395..17e1a8e9 100644
--- a/doc/aria2c.1.html
+++ b/doc/aria2c.1.html
@@ -1047,6 +1047,18 @@ writes the piece to the appropriate files.</td>
 </p>
 </dd>
 <dt>
+<strong>--bt-tracker-interval</strong>=SEC
+</dt>
+<dd>
+<p>
+  Set the interval in seconds between tracker requests. This
+  completely overrides interval value and aria2 just uses this value
+  and ignores the minInterval and interval value in the response of
+  tracker. If <em>0</em> is set, aria2 determines interval based on the
+  response of tracker and the download progress.  Default: <em>0</em>
+</p>
+</dd>
+<dt>
 <strong>--dht-entry-point</strong>=HOST:PORT
 </dt>
 <dd>
@@ -2325,7 +2337,7 @@ files in the program, then also delete it here.</p></div>
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2009-03-13 22:35:04 JST
+Last updated 2009-03-22 00:13:56 JST
 </div>
 </div>
 </body>
diff --git a/doc/aria2c.1.txt b/doc/aria2c.1.txt
index 0754ba12..e371f02d 100644
--- a/doc/aria2c.1.txt
+++ b/doc/aria2c.1.txt
@@ -368,6 +368,13 @@ BitTorrent Specific Options
   Seed previously downloaded files without verifying piece hashes.
   Default: 'false'
 
+*--bt-tracker-interval*=SEC::
+  Set the interval in seconds between tracker requests. This
+  completely overrides interval value and aria2 just uses this value
+  and ignores the minInterval and interval value in the response of
+  tracker. If '0' is set, aria2 determines interval based on the
+  response of tracker and the download progress.  Default: '0'
+
 *--dht-entry-point*=HOST:PORT::
   Set host and port as an entry point to DHT network.