diff --git a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/graph/SparkXmlRecordBuilderJob.java b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/graph/SparkXmlRecordBuilderJob.java
index 2a518eb92..38bc2bae2 100644
--- a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/graph/SparkXmlRecordBuilderJob.java
+++ b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/graph/SparkXmlRecordBuilderJob.java
@@ -34,8 +34,7 @@ public class SparkXmlRecordBuilderJob {
         }
 
         new GraphJoiner(spark, inputPath, outputPath)
-                .adjacencyLists()
-                .asXML();
+                .adjacencyLists();
     }
 
 }