diff --git a/README.asciidoc b/README.asciidoc
index ce04c3d4..8615d87f 100644
--- a/README.asciidoc
+++ b/README.asciidoc
@@ -145,6 +145,14 @@ You can use libexpat1-dev instead of libxml2-dev:
 
 You may also need pkg-config to detect the above mentioned libraries.
 
+If you downloaded source code from git repository, you have to run
+following command to generate configure script and other files
+necessary to build the program:
+
+---------------
+$ autoreconf -i
+---------------
+
 The quickest way to build aria2 is just type following commands:
 
 -------------
diff --git a/README.html b/README.html
index 787eea35..3fcf3fc8 100644
--- a/README.html
+++ b/README.html
@@ -915,6 +915,13 @@ libexpat1-dev    (Required for Metalink support)
 </li>
 </ul></div>
 <div class="paragraph"><p>You may also need pkg-config to detect the above mentioned libraries.</p></div>
+<div class="paragraph"><p>If you downloaded source code from git repository, you have to run
+following command to generate configure script and other files
+necessary to build the program:</p></div>
+<div class="listingblock">
+<div class="content">
+<pre><tt>$ autoreconf -i</tt></pre>
+</div></div>
 <div class="paragraph"><p>The quickest way to build aria2 is just type following commands:</p></div>
 <div class="listingblock">
 <div class="content">
@@ -1088,7 +1095,7 @@ correct permissions(600).</p></div>
 <div id="footnotes"><hr /></div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2010-11-27 21:58:32 JST
+Last updated 2010-11-28 01:13:54 JST
 </div>
 </div>
 </body>