diff --git a/src/main/java/writer2latex/rdf/DocumentStructure.java b/src/main/java/writer2latex/rdf/DocumentStructure.java
index f388fe1..eea9d50 100644
--- a/src/main/java/writer2latex/rdf/DocumentStructure.java
+++ b/src/main/java/writer2latex/rdf/DocumentStructure.java
@@ -32,7 +32,7 @@ public class DocumentStructure {
 	private final String EXCERPT = "textExcerpt";
 	private final String TOC_ELEMENT = "TOCElement";
 	private final String ELENPHARTICLE = "elenphArticle";
-	private String documentID = "12DOC_ID";
+	private String documentID = "DOC_ID";
 
 
 	private OntModel m;
@@ -53,8 +53,9 @@ public class DocumentStructure {
 
 		
 	}
-	public DocumentStructure(Vector<XhtmlDocument> files) {
+	public DocumentStructure(Vector<XhtmlDocument> files,String fileName) {
 		this();
+		this.documentID = fileName;
 		Iterator<XhtmlDocument> filesIterator = files.iterator();
 		while (filesIterator.hasNext()) {
 			XhtmlDocument inputDoc = filesIterator.next();
diff --git a/src/main/java/writer2latex/rdf/RDFDocumentResult.java b/src/main/java/writer2latex/rdf/RDFDocumentResult.java
index 00b95c8..88aa66f 100644
--- a/src/main/java/writer2latex/rdf/RDFDocumentResult.java
+++ b/src/main/java/writer2latex/rdf/RDFDocumentResult.java
@@ -24,10 +24,10 @@ public class RDFDocumentResult implements OutputFile {
 	private DocumentStructure rdfStructure = null;
 	
 
-	public RDFDocumentResult(Vector<XhtmlDocument> outFiles,  String sFileName, XhtmlConfig config) {
-		this.sFileName = Misc.removeExtension(sFileName);
+	public RDFDocumentResult(Vector<XhtmlDocument> outFiles,  String fileName, XhtmlConfig config) {
+		this.sFileName = Misc.removeExtension(fileName);
 		this.config = config;
-		rdfStructure = new DocumentStructure(outFiles);
+		rdfStructure = new DocumentStructure(outFiles,fileName);
 		rdfStructure.createTree();
 
 	}