diff --git a/packages/plugins/@nocobase/plugin-file-manager/src/server/__tests__/utils.test.ts b/packages/plugins/@nocobase/plugin-file-manager/src/server/__tests__/utils.test.ts
new file mode 100644
index 0000000000..9264ef780a
--- /dev/null
+++ b/packages/plugins/@nocobase/plugin-file-manager/src/server/__tests__/utils.test.ts
@@ -0,0 +1,50 @@
+/**
+ * This file is part of the NocoBase (R) project.
+ * Copyright (c) 2020-2024 NocoBase Co., Ltd.
+ * Authors: NocoBase Team.
+ *
+ * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
+ * For more information, please refer to: https://www.nocobase.com/agreement.
+ */
+
+import { getApp } from '.';
+import PluginFileManagerServer from '../server';
+
+import { STORAGE_TYPE_LOCAL } from '../../constants';
+
+import { getFileKey } from '../utils';
+
+describe('file manager > utils', () => {
+  let app;
+  let agent;
+  let db;
+  let plugin: PluginFileManagerServer;
+  let StorageRepo;
+  let AttachmentRepo;
+  let local;
+
+  beforeEach(async () => {
+    app = await getApp();
+    agent = app.agent();
+    db = app.db;
+    plugin = app.pm.get(PluginFileManagerServer) as PluginFileManagerServer;
+
+    AttachmentRepo = db.getCollection('attachments').repository;
+    StorageRepo = db.getCollection('storages').repository;
+    local = await StorageRepo.findOne({
+      filter: {
+        type: STORAGE_TYPE_LOCAL,
+      },
+    });
+  });
+
+  afterEach(async () => {
+    await app.destroy();
+  });
+
+  describe('getFileKey', () => {
+    it('path as null should works', async () => {
+      expect(getFileKey({ path: null, filename: 'test.jpg' })).toBe('test.jpg');
+    });
+  });
+});
diff --git a/packages/plugins/@nocobase/plugin-file-manager/src/server/utils.ts b/packages/plugins/@nocobase/plugin-file-manager/src/server/utils.ts
index a5d6b1334d..989aa8dd81 100644
--- a/packages/plugins/@nocobase/plugin-file-manager/src/server/utils.ts
+++ b/packages/plugins/@nocobase/plugin-file-manager/src/server/utils.ts
@@ -28,7 +28,7 @@ export const cloudFilenameGetter = (storage) => (req, file, cb) => {
 };
 
 export function getFileKey(record) {
-  return urlJoin(record.path, record.filename).replace(/^\//, '');
+  return urlJoin(record.path || '', record.filename).replace(/^\//, '');
 }
 
 export function ensureUrlEncoded(value) {