diff --git a/frontend/src/views/chat/component/charts/Line.ts b/frontend/src/views/chat/component/charts/Line.ts
index 76610722..1789db3c 100644
--- a/frontend/src/views/chat/component/charts/Line.ts
+++ b/frontend/src/views/chat/component/charts/Line.ts
@@ -28,7 +28,7 @@ export class Line extends BaseG2Chart {
       })
 
     this.chart?.line().label({
-      text: 'value',
+      text: y[0].value,
       style: {
         dx: -10,
         dy: -12,