Index: src/main/java/hudson/plugins/promoted_builds/Promotion.java
===================================================================
--- src/main/java/hudson/plugins/promoted_builds/Promotion.java	(revision 37151)
+++ src/main/java/hudson/plugins/promoted_builds/Promotion.java	(working copy)
@@ -65,6 +65,10 @@
     @Override
     public EnvVars getEnvironment(TaskListener listener) throws IOException, InterruptedException {
         EnvVars e = super.getEnvironment(listener);
+        
+        e.put("ORIG_BUILD_NUMBER", new Integer(targetBuildNumber).toString());
+        e.put("ORIG_BUILD_ID", getTarget().getId());
+        
         String rootUrl = Hudson.getInstance().getRootUrl();
         if(rootUrl!=null)
             e.put("PROMOTED_URL",rootUrl+getTarget().getUrl());