diff --git a/dhp-workflows/dhp-aggregation/src/main/scala/eu/dnetlib/dhp/datacite/DataciteToOAFTransformation.scala b/dhp-workflows/dhp-aggregation/src/main/scala/eu/dnetlib/dhp/datacite/DataciteToOAFTransformation.scala
index 0f82ecadf..088a07427 100644
--- a/dhp-workflows/dhp-aggregation/src/main/scala/eu/dnetlib/dhp/datacite/DataciteToOAFTransformation.scala
+++ b/dhp-workflows/dhp-aggregation/src/main/scala/eu/dnetlib/dhp/datacite/DataciteToOAFTransformation.scala
@@ -587,7 +587,7 @@ object DataciteToOAFTransformation {
     val oid = result.getId
     result.setId(IdentifierFactory.createIdentifier(result))
     if (!result.getId.equalsIgnoreCase(oid)) {
-      result.setOriginalId((oid::List(doi)).asJava)
+      result.setOriginalId((oid :: List(doi)).asJava)
     }
 
     var relations: List[Relation] =