diff --git a/build.xml b/build.xml
index 8af1ea578..68a08f928 100644
--- a/build.xml
+++ b/build.xml
@@ -286,6 +286,7 @@
             <!-- Tell all protocol testers their account details. -->
             <syspropertyset id="accounts">
               <propertyref prefix="accounts"/>
+              <propertyref prefix="net"/>
             </syspropertyset>
         </java>