diff --git a/components/popover/demo/triggerType.vue b/components/popover/demo/triggerType.vue
index 8abb30f85a..eb173bfac4 100644
--- a/components/popover/demo/triggerType.vue
+++ b/components/popover/demo/triggerType.vue
@@ -16,7 +16,7 @@ Mouse to click, focus and move in.
 
 </docs>
 <template>
-  <div>
+  <div id="components-popover-demo-triggerType">
     <a-popover title="Title" trigger="hover">
       <template #content>
         <p>Content</p>