diff --git a/java/org/slub/rosetta/dps/repository/plugin/ValidationSchema.java b/java/org/slub/rosetta/dps/repository/plugin/ValidationSchema.java
index 30630ebe906b7f09b35fa82d47eb6789d325f424..7ab207635b43096ad3e5bb24ef3467aed1730671 100644
--- a/java/org/slub/rosetta/dps/repository/plugin/ValidationSchema.java
+++ b/java/org/slub/rosetta/dps/repository/plugin/ValidationSchema.java
@@ -22,11 +22,16 @@ import java.net.URI;
 public class ValidationSchema {
     public final String nameSpace;
     public final ValidationSchemaType schemaType;
-    public final URI schemaURI;
+    public URI schemaURI;
 
     public ValidationSchema(String nameSpace, ValidationSchemaType schemaType, URI schemaURI) throws SAXException {
         this.nameSpace = nameSpace;
         this.schemaURI = schemaURI;
         this.schemaType = schemaType;
     }
+    public ValidationSchema(String nameSpace, ValidationSchemaType schemaType) throws SAXException {
+        this.nameSpace = nameSpace;
+        this.schemaType = schemaType;
+        //this.schemaURI = new URI("file://localhost/undefined");
+    }
 }