From 3ae32aaed8fe61da18fdf4a573b5b8f9b2dd3d3f Mon Sep 17 00:00:00 2001
From: Akira Takizawa <akx20000@protonmail.com>
Date: Wed, 29 Aug 2018 08:51:56 +0900
Subject: [PATCH] Add math library on params/config.go

---
 params/config.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/params/config.go b/params/config.go
index 0ee9bd38c2..d58a92683d 100644
--- a/params/config.go
+++ b/params/config.go
@@ -18,6 +18,7 @@ package params
 
 import (
 	"fmt"
+	"math"
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"