diff --git a/tests/storage.test.ts b/tests/storage.test.ts
index 7614874..8e346f5 100644
--- a/tests/storage.test.ts
+++ b/tests/storage.test.ts
@@ -24,8 +24,8 @@ afterEach(async () => {
   await removeDir(uploadDir);
 });
 
-function params(maxFileSizeBytes = 1024 * 1024): { targetDir: string; maxFileSizeBytes: number } {
-  return { targetDir: uploadDir, maxFileSizeBytes };
+function params(maxFileSizeBytes = 1024 * 1024): { targetDir: string; maxFileSizeBytes: number,permission:number } {
+  return { targetDir: uploadDir, maxFileSizeBytes ,permission:0o666};
 }
 
 describe('saveFile', () => {