diff --git a/src/main/java/eu/dnetlib/dhp/schema/sx/summary/Typology.java b/src/main/java/eu/dnetlib/dhp/schema/sx/summary/Typology.java
index e39f312..689ec15 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/sx/summary/Typology.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/sx/summary/Typology.java
@@ -4,5 +4,5 @@ package eu.dnetlib.dhp.schema.sx.summary;
 import java.io.Serializable;
 
 public enum Typology implements Serializable {
-	dataset, publication, unknown
+	dataset, publication, software, otherresearchproduct
 }