diff --git a/src/cartesian/Brush.tsx b/src/cartesian/Brush.tsx
index 2f563b7afd..9bf625df40 100644
--- a/src/cartesian/Brush.tsx
+++ b/src/cartesian/Brush.tsx
@@ -134,7 +134,7 @@ function TravellerLayer({
     height,
   };
 
-  const ariaLabelBrush = ariaLabel || `Min value: ${data[startIndex].name}, Max value: ${data[endIndex].name}`;
+  const ariaLabelBrush = ariaLabel || `Min value: ${data[startIndex]?.name}, Max value: ${data[endIndex]?.name}`;
 
   return (
     <Layer