From fcf2143e709806d27c56a90ca8937a1812ad97a3 Mon Sep 17 00:00:00 2001
From: Ben Ogle <ogle.ben@gmail.com>
Date: Thu, 25 Sep 2014 14:50:52 -0700
Subject: [PATCH] isPlainObject

---
 src/config.coffee | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/config.coffee b/src/config.coffee
index 361ba9acb..a895ad533 100644
--- a/src/config.coffee
+++ b/src/config.coffee
@@ -624,7 +624,7 @@ class Config
   extractDefaultsFromSchema: (schema) ->
     if schema.default?
       schema.default
-    else if schema.type is 'object' and schema.properties? and typeof schema.properties is "object"
+    else if schema.type is 'object' and schema.properties? and isPlainObject(schema.properties)
       defaults = {}
       properties = schema.properties or {}
       defaults[key] = @extractDefaultsFromSchema(value) for key, value of properties