diff --git a/imports/ro-import.ttl b/imports/ro-import.ttl
index ea47301..c6d7a63 100644
--- a/imports/ro-import.ttl
+++ b/imports/ro-import.ttl
@@ -72,6 +72,8 @@ obo:RO_0001900 rdf:type owl:AnnotationProperty .
 ###  http://www.geneontology.org/formats/oboInOwl#inSubset
 <http://www.geneontology.org/formats/oboInOwl#inSubset> rdf:type owl:AnnotationProperty .
 
+###  http://purl.org/dc/terms/license
+<http://purl.org/dc/terms/license> rdf:type owl:AnnotationProperty .
 
 #################################################################
 #    Object Properties