diff --git a/src/components/bpmnProcessDesigner/package/penal/properties/ElementProperties.vue b/src/components/bpmnProcessDesigner/package/penal/properties/ElementProperties.vue
index 494b3d97..016cdf6c 100644
--- a/src/components/bpmnProcessDesigner/package/penal/properties/ElementProperties.vue
+++ b/src/components/bpmnProcessDesigner/package/penal/properties/ElementProperties.vue
@@ -80,7 +80,7 @@ const resetAttributesList = () => {
   otherExtensionList.value = [] // 其他扩展配置
   bpmnElementProperties.value =
     // bpmnElement.value.businessObject?.extensionElements?.filter((ex) => {
-    bpmnElement.value.businessObject?.extensionElements?.values.filter((ex) => {
+    bpmnElement.value.businessObject?.extensionElements?.values?.filter((ex) => {
       if (ex.$type !== `${prefix}:Properties`) {
         otherExtensionList.value.push(ex)
       }