diff --git a/contracts/mainnet/connectors/weth/helpers.sol b/contracts/mainnet/connectors/weth/helpers.sol
index ad69ac7d..b348c0b6 100644
--- a/contracts/mainnet/connectors/weth/helpers.sol
+++ b/contracts/mainnet/connectors/weth/helpers.sol
@@ -4,5 +4,5 @@ import { TokenInterface } from "../../common/interfaces.sol";
 
 
 abstract contract Helpers  {
-    TokenInterface wethContract = TokenInterface(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2);
+    TokenInterface constant public wethContract = TokenInterface(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2);
 }