diff --git a/src/cco-modules/AgentOntology.ttl b/src/cco-modules/AgentOntology.ttl
index 2fc57c7..424a225 100644
--- a/src/cco-modules/AgentOntology.ttl
+++ b/src/cco-modules/AgentOntology.ttl
@@ -125,6 +125,8 @@ cco:ont00001786 rdf:type owl:ObjectProperty ;
 cco:ont00001787 rdf:type owl:ObjectProperty ;
                  rdfs:subPropertyOf obo:BFO_0000056 ;
                  owl:inverseOf cco:ont00001833 ;
+                 rdfs:domain cco:ont00001017
+                 rdfs:range obo:BFO_0000015
                  rdfs:label "agent in"@en ;
                  skos:definition "x agent_in y iff y is an instance of Process and x is an instance of Agent, such that x is causally active in y."@en ;
                  cco:ont00001760 "https://www.commoncoreontologies.org/AgentOntology"^^xsd:anyURI .