diff --git a/core/core-frontend/src/views/copilot/index.vue b/core/core-frontend/src/views/copilot/index.vue
index 1c11baf05f..9f6dd2e234 100644
--- a/core/core-frontend/src/views/copilot/index.vue
+++ b/core/core-frontend/src/views/copilot/index.vue
@@ -287,6 +287,7 @@ const queryAnswer = (event?: KeyboardEvent) => {
               @change="handleDatasetChange"
               :props="dsSelectProps"
               style="width: 100%"
+              node-key="id"
               ref="treeSelectRef"
               placement="bottom"
               :render-after-expand="false"