diff --git a/shared/sx/primitives_io.py b/shared/sx/primitives_io.py
index bb9e65a..dc066f7 100644
--- a/shared/sx/primitives_io.py
+++ b/shared/sx/primitives_io.py
@@ -226,8 +226,8 @@ def _dto_to_dict(obj: Any) -> dict[str, Any]:
     without parsing date strings.
     """
     if hasattr(obj, "__dataclass_fields__"):
-        import dataclasses
-        d = dataclasses.asdict(obj)
+        from shared.contracts.dtos import dto_to_dict
+        return dto_to_dict(obj)
     elif hasattr(obj, "_asdict"):
         d = dict(obj._asdict())
     elif hasattr(obj, "__dict__"):