diff --git a/config.xml b/config.xml
index 8adffaa9de6978eb5e0e9c9869996d6f63c0fc02..425314fca4982a7c3eb4df78bc6abd220bc6fd65 100644
--- a/config.xml
+++ b/config.xml
@@ -256,7 +256,11 @@
     <jdk>
       <name></name>
       <home></home>
-      <properties/>
+      <properties>
+        <hudson.tools.InstallSourceProperty>
+          <installers/>
+        </hudson.tools.InstallSourceProperty>
+      </properties>
     </jdk>
   </jdks>
   <viewsTabBar class="hudson.views.DefaultViewsTabBar"/>