diff --git a/model/infrastructure/Connector.ttl b/model/infrastructure/Connector.ttl
index f4c04c35..4a649b4d 100644
--- a/model/infrastructure/Connector.ttl
+++ b/model/infrastructure/Connector.ttl
@@ -90,9 +90,9 @@ ids:catalog a owl:ObjectProperty;
     rdfs:label "catalog"@en;
     rdfs:comment "References the Catalog of published or requested resource by this Connector."@en.
 
-ids:hasAgents a owl:ObjectProperty;
+ids:hasAgent a owl:ObjectProperty;
     idsm:referenceByUri true;
-    rdfs:label "has Agents"@en;
+    rdfs:label "has Agent"@en;
     rdfs:domain ids:Connector;
     rdfs:range ids:Agent;
     rdfs:comment "The Agents for which this Connector may initiate and receive Messages."@en.
diff --git a/testing/infrastructure/ConnectorShape.ttl b/testing/infrastructure/ConnectorShape.ttl
index dbb49c32..160a6de2 100644
--- a/testing/infrastructure/ConnectorShape.ttl
+++ b/testing/infrastructure/ConnectorShape.ttl
@@ -74,7 +74,7 @@ shapes:ConnectorShape
     
     sh:property [
 		a sh:PropertyShape ;
-		sh:path ids:hasAgents ;
+		sh:path ids:hasAgent ;
 		sh:datatype xsd:anyURI ;
         sh:pattern "^(?:(?:http(s)?|(s)?ftp|idscp):\\/\\/)?[\\w.-]+(?:\\.[\\w\\w.-]+)+[\\w\\-\\._~:/?#\\[\\]@!\\$&'\\(\\)\\*\\+,;=.]+$" ;
 		sh:severity sh:Violation ;