diff --git a/rdf/tbox/filegraph/dataset.owl b/rdf/tbox/filegraph/dataset.owl
index 4a8d7fe9..27447d06 100644
--- a/rdf/tbox/filegraph/dataset.owl
+++ b/rdf/tbox/filegraph/dataset.owl
@@ -14,7 +14,7 @@
  
      <owl:Class rdf:about="http://purl.obolibrary.org/obo/TODO_Dataset">
  
-         <rdfs:subClassOf rdf:resource="http://purl.obolibrary.org/obo/IAO_0000030"/>
+         <rdfs:subClassOf rdf:resource="http://purl.org/ontology/bibo/Document"/>
              <obo:IAO_0000115 rdf:datatype="http://www.w3.org/2001/XMLSchema#string">A named collection of data, usually containing only one type of data</obo:IAO_0000115>
              <obo:IAO_0000112 rdf:datatype="http://www.w3.org/2001/XMLSchema#string">US Patent Data; US Job Data</obo:IAO_0000112>