diff --git a/superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/transformProps.ts b/superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/transformProps.ts
index bed39c7bc..c0da444bf 100644
--- a/superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/transformProps.ts
+++ b/superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/transformProps.ts
@@ -590,7 +590,7 @@ export default function transformProps(
         });
         if (stack) {
           rows.reverse();
-          if (focusedRow) {
+          if (focusedRow !== undefined) {
             focusedRow = rows.length - focusedRow - 1;
           }
         }