diff --git a/superset/charts/api.py b/superset/charts/api.py
index c5e0eb77d801..7cef39a2906c 100644
--- a/superset/charts/api.py
+++ b/superset/charts/api.py
@@ -199,9 +199,7 @@ def ensure_thumbnails_enabled(self) -> Optional[Response]:
         "created_by",
         "changed_by",
         "last_saved_at",
-        "last_saved_by.id",
-        "last_saved_by.first_name",
-        "last_saved_by.last_name",
+        "last_saved_by",
         "datasource_id",
         "datasource_name",
         "datasource_type",