diff --git a/site/zenodo_rdm/legacy/serializers/schemas/legacyjson.py b/site/zenodo_rdm/legacy/serializers/schemas/legacyjson.py
index 4b2651d1..acfa3f31 100644
--- a/site/zenodo_rdm/legacy/serializers/schemas/legacyjson.py
+++ b/site/zenodo_rdm/legacy/serializers/schemas/legacyjson.py
@@ -154,7 +154,7 @@ def dump_files(self, obj):
                     "links": links,
                 }
             )
-        return result or missing
+        return result
 
     @pre_dump
     def hook_metadata(self, data, **kwargs):