diff --git a/dhp-common/src/main/java/eu/dnetlib/dhp/common/vocabulary/VocabularyGroup.java b/dhp-common/src/main/java/eu/dnetlib/dhp/common/vocabulary/VocabularyGroup.java
index d5f57849c7..1c129ff9ce 100644
--- a/dhp-common/src/main/java/eu/dnetlib/dhp/common/vocabulary/VocabularyGroup.java
+++ b/dhp-common/src/main/java/eu/dnetlib/dhp/common/vocabulary/VocabularyGroup.java
@@ -57,9 +57,17 @@ public class VocabularyGroup implements Serializable {
 				final String syn = arr[2].trim();
 
 				vocs.addSynonyms(vocId, termId, syn);
+
 			}
 		}
 
+		// add the term names as synonyms
+		vocs.vocs.values().forEach(voc -> {
+			voc.getTerms().values().forEach(term -> {
+				voc.addSynonym(term.getName().toLowerCase(), term.getId());
+			});
+		});
+
 		return vocs;
 	}
 
diff --git a/dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/clean/GraphCleaningFunctionsTest.java b/dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/clean/GraphCleaningFunctionsTest.java
index c8a368dd6a..f822daa0e5 100644
--- a/dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/clean/GraphCleaningFunctionsTest.java
+++ b/dhp-workflows/dhp-graph-mapper/src/test/java/eu/dnetlib/dhp/oa/graph/clean/GraphCleaningFunctionsTest.java
@@ -101,6 +101,9 @@ public class GraphCleaningFunctionsTest {
 		assertEquals("0018", p_out.getInstance().get(0).getInstancetype().getClassid());
 		assertEquals("Annotation", p_out.getInstance().get(0).getInstancetype().getClassname());
 
+		assertEquals("0033", p_out.getInstance().get(1).getInstancetype().getClassid());
+		assertEquals("Audiovisual", p_out.getInstance().get(1).getInstancetype().getClassname());
+
 		assertEquals("CLOSED", p_out.getInstance().get(0).getAccessright().getClassid());
 		assertEquals("Closed Access", p_out.getInstance().get(0).getAccessright().getClassname());
 
@@ -114,7 +117,7 @@ public class GraphCleaningFunctionsTest {
 
 		List<Instance> poi = p_out.getInstance();
 		assertNotNull(poi);
-		assertEquals(1, poi.size());
+		assertEquals(2, poi.size());
 
 		final Instance poii = poi.get(0);
 		assertNotNull(poii);
@@ -163,7 +166,7 @@ public class GraphCleaningFunctionsTest {
 
 		final List<Instance> pci = p_cleaned.getInstance();
 		assertNotNull(pci);
-		assertEquals(1, pci.size());
+		assertEquals(2, pci.size());
 
 		final Instance pcii = pci.get(0);
 		assertNotNull(pcii);
diff --git a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/clean/result.json b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/clean/result.json
index b3e3024746..5b9e86c650 100644
--- a/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/clean/result.json
+++ b/dhp-workflows/dhp-graph-mapper/src/test/resources/eu/dnetlib/dhp/oa/graph/clean/result.json
@@ -403,6 +403,92 @@
         "http://juuli.fi/Record/0275158616",
         "http://dx.doi.org/10.1007/s109090161569x"
       ]
+    },
+    {
+      "pid": [
+        {
+          "dataInfo": null,
+          "qualifier": {
+            "classid": "doi",
+            "classname": "doi",
+            "schemeid": "dnet:pid_types",
+            "schemename": "dnet:pid_types"
+          },
+          "value": "10.1002/s21010127267xy"
+        },
+        {
+          "dataInfo": null,
+          "qualifier": {
+            "classid": "doi",
+            "classname": "doi",
+            "schemeid": "dnet:pid_types",
+            "schemename": "dnet:pid_types"
+          },
+          "value": "10.1008/abcd"
+        }
+      ],
+      "alternateIdentifier": [
+        {
+          "dataInfo": null,
+          "qualifier": {
+            "classid": "doi",
+            "classname": "doi",
+            "schemeid": "dnet:pid_types",
+            "schemename": "dnet:pid_types"
+          },
+          "value": "10.1007/s109090161569x"
+        },
+        {
+          "dataInfo": null,
+          "qualifier": {
+            "classid": "doi",
+            "classname": "doi",
+            "schemeid": "dnet:pid_types",
+            "schemename": "dnet:pid_types"
+          },
+          "value": "10.1009/qwerty"
+        }
+      ],
+      "accessright": {
+        "classid": "CLOSED",
+        "classname": "CLOSED",
+        "schemeid": "dnet:access_modes",
+        "schemename": "dnet:access_modes"
+      },
+      "collectedfrom": {
+        "key": "10|CSC_________::a2b9ce8435390bcbfc05f3cae3948747",
+        "value": "VIRTA"
+      },
+      "dateofacceptance": {
+        "dataInfo": {
+          "deletedbyinference": false,
+          "inferenceprovenance": "",
+          "inferred": false,
+          "invisible": false,
+          "provenanceaction": {
+            "classid": "sysimport:crosswalk:datasetarchive",
+            "classname": "sysimport:crosswalk:datasetarchive",
+            "schemeid": "dnet:provenanceActions",
+            "schemename": "dnet:provenanceActions"
+          },
+          "trust": "0.9"
+        },
+        "value": "2016-01-01"
+      },
+      "distributionlocation": "",
+      "hostedby": {
+        "key": "10|CSC_________::a2b9ce8435390bcbfc05f3cae3948747",
+        "value": "VIRTA"
+      },
+      "instancetype": {
+        "classid": "Audiovisual",
+        "classname": "Audiovisual",
+        "schemeid": "dnet:publication_resource",
+        "schemename": "dnet:publication_resource"
+      },
+      "url": [
+        "http://dx.doi.org/10.1002/s21010127267xy"
+      ]
     }
   ],
   "journal": {