From b23ce3c58ab5799b2bb1004923663ea142cdff0a Mon Sep 17 00:00:00 2001
From: Quenio dos Santos <quenio@me.com>
Date: Sat, 27 Sep 2014 21:26:18 -0300
Subject: [PATCH] Setting optional value

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

diff --git a/mongoose/mongoose.d.ts b/mongoose/mongoose.d.ts
index e9057abc7a..abfd5625ec 100644
--- a/mongoose/mongoose.d.ts
+++ b/mongoose/mongoose.d.ts
@@ -153,7 +153,7 @@ declare module "mongoose" {
     findByIdAndRemove(id: string, options: Object, callback?: (err: any, res: T) => void): Query<T>;
     findByIdAndUpdate(id: string, update: Object, callback?: (err: any, res: T) => void): Query<T>;
     findByIdAndUpdate(id: string, update: Object, options: FindAndUpdateOption, callback?: (err: any, res: T) => void): Query<T>;
-    findOne(cond: Object, callback?: (err: any, res: T) => void): Query<T>;
+    findOne(cond?: Object, callback?: (err: any, res: T) => void): Query<T>;
     findOne(cond: Object, fields: Object, callback?: (err: any, res: T) => void): Query<T>;
     findOne(cond: Object, fields: Object, options: Object, callback?: (err: any, res: T) => void): Query<T>;
     findOneAndRemove(cond: Object, callback?: (err: any, res: T) => void): Query<T>;