diff --git a/ontology/saref4wear.ttl b/ontology/saref4wear.ttl
index f66157aa9f448e45377f592b092145ef91389fc3..a094049db9511d2b21b1ecfe7998b0a47e8e1afb 100644
--- a/ontology/saref4wear.ttl
+++ b/ontology/saref4wear.ttl
@@ -345,8 +345,7 @@ s4wear:followsPolicies rdf:type owl:DatatypeProperty ;
 
 ###  https://saref.etsi.org/saref4wear/hasCapacity
 s4wear:hasCapacity rdf:type owl:DatatypeProperty ;
-                   rdfs:domain s4city:Facility ,
-                               s4wear:Area ;
+                   rdfs:domain s4city:Facility ;
                    rdfs:range xsd:long .
 
 
@@ -630,10 +629,6 @@ s4wear:ActionFunction rdf:type owl:Class ;
 s4wear:ActuableObject rdf:type owl:Class .
 
 
-###  https://saref.etsi.org/saref4wear/Area
-s4wear:Area rdf:type owl:Class .
-
-
 ###  https://saref.etsi.org/saref4wear/Biometric
 s4wear:Biometric rdf:type owl:Class ;
                  rdfs:subClassOf s4wear:Information .