diff --git a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/MagDataModel.scala b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/MagDataModel.scala
index 58516202b..2419f86a3 100644
--- a/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/MagDataModel.scala
+++ b/dhp-workflows/dhp-doiboost/src/main/java/eu/dnetlib/doiboost/mag/MagDataModel.scala
@@ -129,16 +129,16 @@ case object ConversionUtil {
     val fieldOfStudy = item._2
     if (fieldOfStudy != null && fieldOfStudy.subjects != null && fieldOfStudy.subjects.nonEmpty) {
       val p: List[StructuredProperty] = fieldOfStudy.subjects.flatMap(s => {
-        val s1 = createSP(s.DisplayName, "keywords", "dnet:subject_classification_typologies")
+        val s1 = createSP(s.DisplayName, "keyword", "dnet:subject_classification_typologies")
         val di = DoiBoostMappingUtil.generateDataInfo(s.Score.toString)
         var resList: List[StructuredProperty] = List(s1)
         if (s.MainType.isDefined) {
           val maintp = s.MainType.get
-          val s2 = createSP(s.MainType.get, "keywords", "dnet:subject_classification_typologies")
+          val s2 = createSP(s.MainType.get, "keyword", "dnet:subject_classification_typologies")
           s2.setDataInfo(di)
           resList = resList ::: List(s2)
           if (maintp.contains(".")) {
-            val s3 = createSP(maintp.split("\\.").head, "keywords", "dnet:subject_classification_typologies")
+            val s3 = createSP(maintp.split("\\.").head, "keyword", "dnet:subject_classification_typologies")
             s3.setDataInfo(di)
             resList = resList ::: List(s3)
           }