Index: jython/build.xml
===================================================================
--- jython.orig/build.xml
+++ jython/build.xml
@@ -721,6 +721,7 @@ The readme text for the next release wil
                  excludes="org/python/expose/generate/**,org/python/version.properties"/>   
           </nameunion>
           <manifest>
+              <attribute name="Class-Path" value="${RuntimeClasspath}"/>
               <attribute name="Main-Class" value="org.python.util.jython" />
               <attribute name="Built-By" value="${user.name}" />
               <!-- info section. ATTN: no blanks, no '.' in the names -->