diff --git a/rdf/tbox/filegraph/orcid-interface.n3 b/rdf/tbox/filegraph/orcid-interface.n3
index d4fa00ba..05a2dafa 100644
--- a/rdf/tbox/filegraph/orcid-interface.n3
+++ b/rdf/tbox/filegraph/orcid-interface.n3
@@ -2,9 +2,16 @@
 @prefix owl:     <http://www.w3.org/2002/07/owl#> .
 @prefix core:    <http://vivoweb.org/ontology/core#> .
 @prefix foaf:    <http://xmlns.com/foaf/0.1/> .
+@prefix vitro:   <http://vitro.mannlib.cornell.edu/ns/vitro/0.7#> .
+@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
 
 core:confirmedOrcidId
       a owl:ObjectProperty ;
       rdfs:label "Orcid ID confirmation"@en-US ;
       rdfs:comment "Indicates that the Orcid ID has been confirmed by this Person" ;
       rdfs:range foaf:Person .
+
+# When the orcidId triple is deleted, delete the ORCID ID object also.
+core:orcidId    
+      vitro:stubObjectPropertyAnnot "true"^^xsd:boolean ;
+      
\ No newline at end of file