diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/check_missing_mandatory_record_fields.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/check_missing_mandatory_record_fields.sparql
index 2390f28..7f9281d 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/check_missing_mandatory_record_fields.sparql
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/check_missing_mandatory_record_fields.sparql
@@ -114,6 +114,7 @@ SELECT DISTINCT ?s WHERE {
         MINUS {
             ?s rdf:type <https://www.ariadne-infrastructure.eu/resource/ao/cat/1.1/AO_Individual_Data_Resource> .
             ?s	aocat:has_native_subject ?sub .
+            ?sub skos:prefLabel ?subjectLabel .
         }
     }
     UNION{