diff --git a/contracts/TenGransToken.sol b/contracts/TenGransToken.sol
index e41a49b..c3f6257 100644
--- a/contracts/TenGransToken.sol
+++ b/contracts/TenGransToken.sol
@@ -34,6 +34,7 @@ error InvalidInitialSupply();
 contract TenGransToken is ERC20, ERC20Permit, ERC20Votes, ERC20FlashMint, ERC20Capped, IERC7802 {
     address public signer;
     mapping(address => bool) public transitionMinted;
+    uint256 public immutable nativeChainId;
 
     event TransitionMint(address indexed holder, uint256 amount);
 
@@ -42,11 +43,13 @@ contract TenGransToken is ERC20, ERC20Permit, ERC20Votes, ERC20FlashMint, ERC20C
         string memory symbol,
         uint256 initialSupplyWei,
         uint256 capWei,
-        address _signer
+        address _signer,
+        uint256 _nativeChainId
     ) ERC20(name, symbol) ERC20Permit(name) ERC20Capped(capWei) {
         require(initialSupplyWei <= capWei, InvalidInitialSupply());
         _mint(msg.sender, initialSupplyWei);
         signer = _signer;
+        nativeChainId = _nativeChainId;
     }
 
     /// @notice Allows the SuperchainTokenBridge to mint tokens.
@@ -82,7 +85,7 @@ contract TenGransToken is ERC20, ERC20Permit, ERC20Votes, ERC20FlashMint, ERC20C
     /// @param snapshotQuantity Amount of tokens to mint.
     /// @param signature        Signature of the holder.
     function transitionMint(address holder, uint256 snapshotQuantity, bytes memory signature) external {
-        require(block.chainid == 8453, InvalidChain());
+        require(block.chainid == nativeChainId, InvalidChain());
         require(!transitionMinted[holder], AlreadyMinted());
         require(TransitionMintLib.verifyMintSignature(holder, snapshotQuantity, signature, signer), InvalidSignature());