--- a/ontology/ProvenanceOntology.owl	Fri Apr 26 13:31:24 2013 +0100
+++ b/ontology/ProvenanceOntology.owl	Fri Apr 26 13:31:37 2013 +0100
@@ -28,6 +28,7 @@
         <owl:versionIRI rdf:resource="http://www.w3.org/ns/prov-o-20130430"/>
     </owl:Ontology>
     
+    <owl:Ontology rdf:about="http://www.w3.org/ns/prov#"/>
 
 
     <!-- 

--- a/ontology/prov-o.ttl	Fri Apr 26 13:31:24 2013 +0100
+++ b/ontology/prov-o.ttl	Fri Apr 26 13:31:37 2013 +0100
@@ -27,6 +27,9 @@
 owl:versionInfo
     a owl:AnnotationProperty .
 
+<http://www.w3.org/ns/prov#>
+    a owl:Ontology .
+
 :Activity
     a owl:Class ;
     rdfs:isDefinedBy <http://www.w3.org/ns/prov#> ;

--- a/ontology/working-dir/ProvenanceOntology-ordered.owl	Fri Apr 26 13:31:24 2013 +0100
+++ b/ontology/working-dir/ProvenanceOntology-ordered.owl	Fri Apr 26 13:31:37 2013 +0100
@@ -33,6 +33,9 @@
   <rdf:Description rdf:about="http://www.w3.org/2002/07/owl#versionInfo">
     <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#AnnotationProperty"/>
   </rdf:Description>
+  <rdf:Description rdf:about="http://www.w3.org/ns/prov#">
+    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Ontology"/>
+  </rdf:Description>
   <rdf:Description rdf:about="http://www.w3.org/ns/prov#Activity">
     <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/>
   </rdf:Description>