diff --git a/components/form/article/edit-article-form.tsx b/components/form/article/edit-article-form.tsx
index 2f060a7..0d776c0 100644
--- a/components/form/article/edit-article-form.tsx
+++ b/components/form/article/edit-article-form.tsx
@@ -228,8 +228,9 @@ export default function EditArticleForm(props: { isDetail: boolean }) {
     setDiseId(data?.aiArticleId);
     setDetailFiles(data?.files);
     if (
-      data.files[0].file_name.split(".")[1].includes("doc") ||
-      data.files[0].file_name.split(".")[1].includes("pdf")
+      data?.files &&
+      (data.files[0].file_name.split(".")[1].includes("doc") ||
+        data.files[0].file_name.split(".")[1].includes("pdf"))
     ) {
       setSelectedFileType("document");
     } else {