diff --git a/datawrapper/__main__.py b/datawrapper/__main__.py
index f45879c..a209076 100644
--- a/datawrapper/__main__.py
+++ b/datawrapper/__main__.py
@@ -904,8 +904,7 @@ def update_description(
             raise InvalidRequest(msg)
 
         # Update the chart using the update_chart method
-        metadata = {"metadata": {"describe": _query}}
-        return self.update_chart(chart_id, metadata=metadata)
+        return self.update_chart(chart_id, metadata={"describe": _query})
 
     def delete_chart(self, chart_id: str) -> bool:
         """Deletes a chart, table or map.