diff --git a/docs/manual/using.html b/docs/manual/using.html
index 4b50f2241..0ba380184 100644
--- a/docs/manual/using.html
+++ b/docs/manual/using.html
@@ -115,9 +115,9 @@ example, if the <code>module-A-present</code> property is set
 the target will always be executed.</p>
 
 <p>
-<b>Important:</b> the <code>if</code> and <code>unless</code> attributes only 
+<b>Important:</b> the <code>if</code> and <code>unless</code> attributes only
 enable or disable the target to which they are attached. They do not control
-whether or not targets that a conditional target depends upon get executed. 
+whether or not targets that a conditional target depends upon get executed.
 In fact, they do not even get evaluated until the target is about to be executed,
 and all its predecessors have already run.
 
@@ -278,6 +278,11 @@ ant.project.name    the name of the project that is currently executing;
 ant.java.version    the JVM version Ant detected; currently it can hold
                     the values &quot;1.2&quot;, &quot;1.3&quot;, &quot;1.4&quot; and &quot;1.5&quot;.
 </pre>
+<p>There is also another property, but this is set by the launcher script and therefore
+maybe not set inside IDEs:</p>
+<pre>
+ant.home            home directory of Ant
+</pre>
 
 <a name="example"><h3>Example Buildfile</h3></a>
 <pre>
@@ -591,4 +596,4 @@ deliberately assign a different meaning to <code>refid</code>.</p>
 Reserved.</p>
 
 </body>
-</html>
+</html>
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