diff --git a/packages/lark-vchart/gallery/pages/chart/index.ttml b/packages/lark-vchart/gallery/pages/chart/index.ttml
index 4b5e6629c..d4168f268 100644
--- a/packages/lark-vchart/gallery/pages/chart/index.ttml
+++ b/packages/lark-vchart/gallery/pages/chart/index.ttml
@@ -1,5 +1,6 @@
 <view tt:if="{{ spec }}" class="container">
   <vchart
+    id="chart"
     canvas-id="chart"
     spec="{{ spec }}"
     styles="{{ styles }}"