From bd9fdf885f5d3d12858ee6c034e2ff0bf2d0e1dd Mon Sep 17 00:00:00 2001
From: Xi Lin <zimpha@gmail.com>
Date: Fri, 23 Jun 2023 02:14:04 +0800
Subject: [PATCH] fix(contracts): change type of layer2ChainId to uint64 (#591)

---
 contracts/src/L1/rollup/ScrollChain.sol | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/contracts/src/L1/rollup/ScrollChain.sol b/contracts/src/L1/rollup/ScrollChain.sol
index 5e6de0442..46b75c4f7 100644
--- a/contracts/src/L1/rollup/ScrollChain.sol
+++ b/contracts/src/L1/rollup/ScrollChain.sol
@@ -45,7 +45,7 @@ contract ScrollChain is OwnableUpgradeable, IScrollChain {
      *************/
 
     /// @notice The chain id of the corresponding layer 2 chain.
-    uint32 public immutable layer2ChainId;
+    uint64 public immutable layer2ChainId;
 
     /*************
      * Variables *
@@ -97,7 +97,7 @@ contract ScrollChain is OwnableUpgradeable, IScrollChain {
      * Constructor *
      ***************/
 
-    constructor(uint32 _chainId) {
+    constructor(uint64 _chainId) {
         layer2ChainId = _chainId;
     }