diff --git a/ontology/saref.ttl b/ontology/saref.ttl
index a0a1f86159550d5064e2049df76726da3aba26fa..4b905a1c3e582e9bfaf7c7ca475d02778b1a876f 100644
--- a/ontology/saref.ttl
+++ b/ontology/saref.ttl
@@ -205,6 +205,7 @@ saref:relatesToMeasurement rdf:type owl:ObjectProperty ;
 
 ###  https://saref.etsi.org/relatesToProperty
 saref:relatesToProperty rdf:type owl:ObjectProperty ;
+                        owl:inverseOf saref:relatesToMeasurement ;
                         rdfs:comment "A relationship between a measurement and the property it relates to"@en ;
                         rdfs:label "relates to property"@en .