diff --git a/ontology/uco/configuration/configuration.ttl b/ontology/uco/configuration/configuration.ttl
index bdb1e7ea..c2a7b0fe 100644
--- a/ontology/uco/configuration/configuration.ttl
+++ b/ontology/uco/configuration/configuration.ttl
@@ -59,7 +59,7 @@ configuration:ConfigurationEntry
 	sh:property
 		[
 			sh:class core:UcoObject ;
-			sh:nodeKind sh:BlankNodeOrIRI ;
+			sh:nodeKind sh:IRI ;
 			sh:path configuration:itemObject ;
 		] ,
 		[