diff --git a/docs/manual/running.html b/docs/manual/running.html
index 2ef471dd0..96796f1bf 100644
--- a/docs/manual/running.html
+++ b/docs/manual/running.html
@@ -105,7 +105,7 @@ Options:
   -find <file>           (s)earch for buildfile towards the root of
     -s  <file>           the filesystem and use it
   -nice  number          A niceness value for the main thread:
-                         1 (lowest) to 10 (highest); 5 is the default                         
+                         1 (lowest) to 10 (highest); 5 is the default
 </pre>
 <p>For more information about <code>-logger</code> and
 <code>-listener</code> see
@@ -212,6 +212,14 @@ set):</p>
   to find, even if the file is called <code>build.xml</code>.
 </ul>
 
+<h3><a name="sysprops">Java System Properties</a></h3>
+<p>Some of Ants core classes can be configured via system properties:</p>
+<ul>
+  <li><code>org.apache.tools.ant.ProjectHelper</code> - specifies the
+  classname to use as ProjectHelper. The class must extend org.apache.tools.ant.ProjectHelper.
+  If not set org.apache.tools.ant.ProjectHelper is used as ProjectHelper.</li>
+</ul>
+
 <h2><a name="cygwin">Cygwin Users</a></h2>
 <p>The Unix launch script that come with Ant works correctly with Cygwin. You
 should not have any problems launching Ant form the Cygwin shell. It is important
@@ -293,4 +301,3 @@ Reserved.</p>
 
 </body>
 </html>
-
diff --git a/docs/manual/runninglist.html b/docs/manual/runninglist.html
index 8e973e7e8..2dcc332da 100644
--- a/docs/manual/runninglist.html
+++ b/docs/manual/runninglist.html
@@ -16,10 +16,10 @@
 &nbsp;&nbsp;<a href="running.html#libs">Library Directories</a><br>
 &nbsp;&nbsp;<a href="running.html#files">Files</a><br>
 &nbsp;&nbsp;<a href="running.html#envvars">Environment Variables</a><br>
+&nbsp;&nbsp;<a href="running.html#sysprops">Java System Properties</a><br>
 &nbsp;&nbsp;<a href="running.html#cygwin">Cygwin Users</a><br>
 &nbsp;&nbsp;<a href="running.html#os2">OS/2 Users</a><br>
 <a href="running.html#viajava">Running Ant via Java</a><br>
 
 </body>
 </html>
-