From 23bfca05dff844b5d73919b4320bc6247dfad007 Mon Sep 17 00:00:00 2001
From: mingda <leimingda@pku.edu.cn>
Date: Wed, 3 Feb 2021 12:18:17 +0800
Subject: [PATCH] change _IS_ETH_NETWORK_ to immutable

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

diff --git a/contracts/DODOToken/DODOMigrationBSC.sol b/contracts/DODOToken/DODOMigrationBSC.sol
index 382946a..b0635e5 100644
--- a/contracts/DODOToken/DODOMigrationBSC.sol
+++ b/contracts/DODOToken/DODOMigrationBSC.sol
@@ -20,7 +20,7 @@ contract DODOMigrationBSC is Ownable {
     address immutable _BSC_DODO_TOKEN_ = 0xa6E37b1d3690C8E608Bb11AFE193fA7C88141643;
     mapping(address => uint256) internal balances;
 
-    bool public _IS_ETH_NETWORK_;
+    bool immutable _IS_ETH_NETWORK_;
 
     constructor(bool isETHNetwork) public {
         _IS_ETH_NETWORK_ = isETHNetwork;