From fb713432f353c8df574ff463ea4363e37bfa0188 Mon Sep 17 00:00:00 2001
From: Aniket <aniketengg.225@gmail.com>
Date: Tue, 13 Mar 2018 15:24:23 +0530
Subject: [PATCH] Minor improvement

---
 contracts/ECRecovery.sol | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/contracts/ECRecovery.sol b/contracts/ECRecovery.sol
index 709ee43cb..c5b6d8f64 100644
--- a/contracts/ECRecovery.sol
+++ b/contracts/ECRecovery.sol
@@ -41,13 +41,12 @@ library ECRecovery {
       return (address(0));
     } else {
 	   
-	   /* 
-        * https://github.com/ethereum/go-ethereum/issues/3731
-        */
+	    /* 
+       * https://github.com/ethereum/go-ethereum/issues/3731
+       */
 		
-      bytes memory prefix = "\x19Ethereum Signed Message:\n32";
-      hash = keccak256(prefix, hash);
-      return ecrecover(hash, v, r, s);
+      bytes memory prefix = "\x19Ethereum Signed Message:\n32"; 
+      return ecrecover(keccak256(prefix, hash), v, r, s);
     }
   }