diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/SEAD-UMEA/ordered_sparql_insert_SEAD_sites.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/SEAD-UMEA/ordered_sparql_insert_SEAD_sites.sparql
index 278e4ef..4b15b85 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/SEAD-UMEA/ordered_sparql_insert_SEAD_sites.sparql
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/SEAD-UMEA/ordered_sparql_insert_SEAD_sites.sparql
@@ -268,7 +268,7 @@ USING <https://ariadne-infrastructure.eu/api_________::ariadne_plus::sead::coll>
 USING <https://ariadne-infrastructure.eu/api_________::ariadne_plus::sead::sites>
  WHERE {
     ?record aocat:is_part_of ?collection .
-    ?collection aocat:has_derived_subject ?x .
+    ?collection aocat:has_derived_subject ?aat_subject .
  };
 
 PREFIX aocat: <https://www.ariadne-infrastructure.eu/resource/ao/cat/1.1/>