diff --git a/contracts/optimism/common/stores.sol b/contracts/optimism/common/stores.sol
index 9471f158..58e26579 100644
--- a/contracts/optimism/common/stores.sol
+++ b/contracts/optimism/common/stores.sol
@@ -1,7 +1,6 @@
 pragma solidity ^0.7.0;
 
-import { MemoryInterface, InstaMapping } from "./interfaces.sol";
-
+import { MemoryInterface } from "./interfaces.sol";
 
 abstract contract Stores {