From 7b06bb4f0befbfec2adf0ce62e3f57f5c092426b Mon Sep 17 00:00:00 2001
From: Elrendio <oscar.walter@ens.fr>
Date: Fri, 8 Feb 2019 15:17:12 +0100
Subject: [PATCH] [node] Correct type of TransformCallback

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

diff --git a/types/node/stream.d.ts b/types/node/stream.d.ts
index a4428728db..122ae563c7 100644
--- a/types/node/stream.d.ts
+++ b/types/node/stream.d.ts
@@ -222,7 +222,7 @@ declare module "stream" {
             uncork(): void;
         }
 
-        type TransformCallback = (error?: Error, data?: any) => void;
+        type TransformCallback = (error?: Error | null, data?: any) => void;
 
         interface TransformOptions extends DuplexOptions {
             read?(this: Transform, size: number): void;