diff --git a/docs/index.html b/docs/index.html
index bb61601c2..20d70c5d4 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -80,6 +80,12 @@ href="http://jakarta.apache.org/from-cvs/jakarta-tools/">http://jakarta.apache.o
 build Ant from the source code.</p>
 <hr>
 <h2><a name="buildingant">Building Ant</a></h2>
+<p>
+  Download and install the Java API for XML Parsing kit from
+  <a href="http://java.sun.com/xml">http://java.sun.com/xml</a>.
+  Make sure the "jaxp.jar" and "parser.jar" files are in your class
+  path.
+</p>
 <p>Go to the directory <code>jakarta-ant</code>.</p>
 <p>Make sure the JDK is in you path.</p>
 <p>Run <code>bootstrap.bat</code> (Windows) or <code>bootstrap.sh</code> (UNIX)