diff --git a/ui/src/workflow/nodes/start-node/index.vue b/ui/src/workflow/nodes/start-node/index.vue
index f7ff22ee4..b4e8055f2 100644
--- a/ui/src/workflow/nodes/start-node/index.vue
+++ b/ui/src/workflow/nodes/start-node/index.vue
@@ -104,7 +104,7 @@ const refreshFieldList = () => {
 const refreshChatFieldList = () => {
   const chatFieldList = props.nodeModel.graphModel.nodes
     .filter((v: any) => v.id === 'base-node')
-    .map((v: any) => cloneDeep(v.properties.chat_input_field_list))
+    .map((v: any) => cloneDeep(v.properties.chat_input_field_list || []))
     .reduce((x: any, y: any) => [...x, ...y], [])
     .map((i: any) => ({ label: i.label, value: i.field }))