diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetUploadForm.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetUploadForm.java
index d9f7dd6446eaa8e468cb2f5fb2af37e45ba87f44..0954b0bc1569ecc0b5a13e18e64a48a523c67e73 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetUploadForm.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetUploadForm.java
@@ -98,6 +98,7 @@ public class DataSetUploadForm extends AbstractRegistrationForm
                         viewContext);
         formPanel.add(experimentChooser.getField());
         formPanel.add(parentsArea = new DataSetParentsArea(viewContext, ID_SUFFIX));
+        parentsArea.setMaxLength(1500);
 
         connectedWithSampleCheckbox.addListener(Events.Change, new Listener<FieldEvent>()
             {