diff --git a/x-pack/plugins/observability/public/components/shared/exploratory_view/series_editor/columns/series_actions.tsx b/x-pack/plugins/observability/public/components/shared/exploratory_view/series_editor/columns/series_actions.tsx
index 37b5b1571f84d3..c1462ce74b4264 100644
--- a/x-pack/plugins/observability/public/components/shared/exploratory_view/series_editor/columns/series_actions.tsx
+++ b/x-pack/plugins/observability/public/components/shared/exploratory_view/series_editor/columns/series_actions.tsx
@@ -30,7 +30,7 @@ export function SeriesActions({ seriesId, series, seriesConfig, onEditClick }: P
     if (allSeries.find(({ name }) => name === copySeriesId)) {
       copySeriesId = copySeriesId + allSeries.length;
     }
-    setSeries(allSeries.length, { ...series, name: copySeriesId });
+    setSeries(allSeries.length, { ...series, name: copySeriesId, breakdown: undefined });
   };
 
   const toggleSeries = () => {