diff --git a/ippisite/ippidb/management/commands/import_v1_data.py b/ippisite/ippidb/management/commands/import_v1_data.py
index bdc029992bf4c32fb2a26c50d6e703d8b14f8ddf..9985399150f5309a6d2606d01c1ca6343d03f637 100644
--- a/ippisite/ippidb/management/commands/import_v1_data.py
+++ b/ippisite/ippidb/management/commands/import_v1_data.py
@@ -538,7 +538,7 @@ select distinct protein.NumUniprot, domain.PfamNumAccession  , complexe.NbCopy,
                         m.dvpmt_phase = item.data['PHASE']
                         m.db_import_date = timezone.now()
                         m.save()
-                        for activity_class_name in item.data['ACTIV_CLASS'].split(','):
+                        for activity_class_name in item.data['ACTIV_CLASS'].split('\n'):
                             activity_class, created = MDDRActivityClass.objects.get_or_create(
                                 name=activity_class_name)
                             m.activity_classes.add(activity_class)