From be692e59ebf2a03e9dabdc60d3903be1cdbe2387 Mon Sep 17 00:00:00 2001
From: Andy Chen <amazingandyyy@gmail.com>
Date: Tue, 31 Oct 2017 00:13:27 -0700
Subject: [PATCH] Update RefundVault.sol

---
 contracts/crowdsale/RefundVault.sol | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contracts/crowdsale/RefundVault.sol b/contracts/crowdsale/RefundVault.sol
index ea74269de..fb721d17a 100644
--- a/contracts/crowdsale/RefundVault.sol
+++ b/contracts/crowdsale/RefundVault.sol
@@ -23,7 +23,7 @@ contract RefundVault is Ownable {
   event Refunded(address indexed beneficiary, uint256 weiAmount);
 
   function RefundVault(address _wallet) {
-    require(_wallet != 0x0);
+    require(_wallet != address(0));
     wallet = _wallet;
     state = State.Active;
   }