From 1691d92be2bc55761af2859bc254bf684c196687 Mon Sep 17 00:00:00 2001
From: Huruikagi <kbc14a04@stu.kawahara.ac.jp>
Date: Fri, 9 Jun 2017 11:09:49 +0900
Subject: [PATCH] Allow null in Options.fileFilter.callback first parameter

---
 types/multer/index.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/multer/index.d.ts b/types/multer/index.d.ts
index 35e71a251d..bd9030292f 100644
--- a/types/multer/index.d.ts
+++ b/types/multer/index.d.ts
@@ -36,7 +36,7 @@ declare namespace multer {
             headerPairs?: number;
         };
         /** A function to control which files to upload and which to skip. */
-        fileFilter?: (req: Express.Request, file: Express.Multer.File, callback: (error: Error, acceptFile: boolean) => void) => void;
+        fileFilter?: (req: Express.Request, file: Express.Multer.File, callback: (error: Error | null, acceptFile: boolean) => void) => void;
     }
 
     interface StorageEngine {