diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql
index 8953445..44fc7c7 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql
@@ -250,8 +250,6 @@ where {
                 %record aocat:has_spatial_coverage ?spatialRegionWKTPolygon .
                 ?spatialRegionWKTPolygon rdf:type aocat:AO_Spatial_Region_Polygon .
                 ?spatialRegionWKTPolygon aocat:has_polygonal_representation ?wkt .
-                filter (datatype(?wkt) = rdf:XMLLiteral)
-                filter (!isIRI(?wkt))
             }
             }
         }
diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_record_data_template.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_record_data_template.sparql
index 58704dc..09e6d56 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_record_data_template.sparql
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_record_data_template.sparql
@@ -249,8 +249,6 @@ where {
                 %record aocat:has_spatial_coverage ?spatialRegionWKTPolygon .
                 ?spatialRegionWKTPolygon rdf:type aocat:AO_Spatial_Region_Polygon .
                 ?spatialRegionWKTPolygon aocat:has_polygonal_representation ?wkt .
-                filter (datatype(?wkt) = rdf:XMLLiteral)
-                filter (!isIRI(?wkt))
             }
             }
     	}