Index: src/lib/com/izforge/izpack/compiler/CompilerConfig.java
===================================================================
--- src/lib/com/izforge/izpack/compiler/CompilerConfig.java	(revision 2050)
+++ src/lib/com/izforge/izpack/compiler/CompilerConfig.java	(working copy)
@@ -1330,7 +1330,7 @@
                     // this constructor will open the specified url (this is
                     // why the InputStream is not handled in a similar manner
                     // to the OutputStream)
-                    IXMLReader reader = new StdXMLReader(null, url.toExternalForm());
+                    IXMLReader reader = new StdXMLReader(null, originalUrl.toExternalForm());
                     parser.setReader(reader);
                     XMLElement xml = (XMLElement) parser.parse();
 
@@ -1734,6 +1734,7 @@
             File file = new File(filename).getAbsoluteFile();
             if (!file.canRead()) throw new CompilerException("Invalid file: " + file);
             reader = new StdXMLReader(new FileInputStream(filename));
+            reader.setSystemID(file.toURL().toExternalForm());
             // add izpack built in property
             compiler.setProperty("izpack.file", file.toString());
         }
Index: src/lib/net/n3/nanoxml/StdXMLReader.java
===================================================================
--- src/lib/net/n3/nanoxml/StdXMLReader.java	(revision 2050)
+++ src/lib/net/n3/nanoxml/StdXMLReader.java	(working copy)
@@ -364,7 +364,6 @@
         {
             // never happens
         }
-
         this.startNewStream(new StringReader(charsRead.toString()));
     }
 
@@ -527,6 +526,10 @@
     public void setSystemID(String systemID) throws MalformedURLException
     {
         this.currentSystemID = new URL(this.currentSystemID, systemID);
+        if (! this.systemIds.isEmpty()) {
+            this.systemIds.pop();
+            this.systemIds.push(this.currentSystemID);
+        }
     }
 
     /**