diff --git a/src/components/react_canvas/reactive_chart.tsx b/src/components/react_canvas/reactive_chart.tsx
index 51e0a1dea1..0612c222a3 100644
--- a/src/components/react_canvas/reactive_chart.tsx
+++ b/src/components/react_canvas/reactive_chart.tsx
@@ -73,7 +73,7 @@ class Chart extends React.Component<ReactiveChartProps, ReactiveChartState> {
     if (!geometries) {
       return;
     }
-    const highlightedLegendItem = highlightedLegendItemIndex ? legendItems[highlightedLegendItemIndex] : null;
+    const highlightedLegendItem = highlightedLegendItemIndex != null ? legendItems[highlightedLegendItemIndex] : null;
 
     return (
       <BarGeometries