diff --git a/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetProfileManager.java b/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetProfileManager.java
index ee4bbd793..70edaa08e 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetProfileManager.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/logic/managers/DatasetProfileManager.java
@@ -213,7 +213,7 @@ public class DatasetProfileManager {
         if (item instanceof Map) {
             return (String) ((Map)item).get("$");
         }
-        return item.toString();
+        return item != null ? item.toString() : null;
     }
 
     public ResponseEntity<byte[]> getDocument(eu.eudat.models.data.user.composite.DatasetProfile datasetProfile, String label) throws IllegalAccessException, IOException, InstantiationException {