diff --git a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/transform/terms.txt b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/transform/terms.txt
index 30138b5bc..93cc00eca 100644
--- a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/transform/terms.txt
+++ b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/transform/terms.txt
@@ -1009,7 +1009,7 @@ datacite:id_typologies @=@ datacite:id_typologies @=@ EAN13 @=@ EAN13
 datacite:id_typologies @=@ datacite:id_typologies @=@ EISSN @=@ EISSN
 datacite:id_typologies @=@ datacite:id_typologies @=@ Handle @=@ Handle
 datacite:id_typologies @=@ datacite:id_typologies @=@ ISBN @=@ ISBN
-datacite:id_typologies @=@ datacite:id_typologies @=@ issn @=@ issn
+datacite:id_typologies @=@ datacite:id_typologies @=@ ISSN @=@ ISSN
 datacite:id_typologies @=@ datacite:id_typologies @=@ ISTC @=@ ISTC
 datacite:id_typologies @=@ datacite:id_typologies @=@ LISSN @=@ LISSN
 datacite:id_typologies @=@ datacite:id_typologies @=@ LSID @=@ LSID