diff --git a/mayan/apps/sources/south_migrations/0009_auto__del_watchfoldersource__chg_field_intervalbasemodel_document_type.py b/mayan/apps/sources/south_migrations/0009_auto__del_watchfoldersource__chg_field_intervalbasemodel_document_type.py
index becfb1aced..30da4f66de 100644
--- a/mayan/apps/sources/south_migrations/0009_auto__del_watchfoldersource__chg_field_intervalbasemodel_document_type.py
+++ b/mayan/apps/sources/south_migrations/0009_auto__del_watchfoldersource__chg_field_intervalbasemodel_document_type.py
@@ -14,6 +14,9 @@ def fake_get_or_create(model, *args, **kwargs):
 
 
 class Migration(SchemaMigration):
+    needed_by = (
+        ('documents', '0031_remove_orphan_documents'),
+    )
 
     def forwards(self, orm):
         # Deleting model 'WatchFolderSource'