diff --git a/ontology/saref.ttl b/ontology/saref.ttl
index b86b04ed59feb83bc15864f57d343d1493edfda9..0d666b26d657d058407e84bba1ec36b37ebb1dc4 100644
--- a/ontology/saref.ttl
+++ b/ontology/saref.ttl
@@ -340,10 +340,6 @@ saref:Command rdf:type owl:Class ;
 
 ###  https://saref.etsi.org/Commodity
 saref:Commodity rdf:type owl:Class ;
-                rdfs:subClassOf [ rdf:type owl:Restriction ;
-                                  owl:onProperty saref:isMeasuredIn ;
-                                  owl:allValuesFrom saref:UnitOfMeasure
-                                ] ;
                 rdfs:comment "A marketable item for which there is demand, but which is supplied without qualitative differentiation across a market. SAREF refers to energy commodities such as electricity, gas, coal and oil. "@en ;
                 rdfs:label "Commodity"@en .