diff --git a/.changeset/hungry-pears-vanish.md b/.changeset/hungry-pears-vanish.md
new file mode 100644
index 000000000000..2ce7119b88cc
--- /dev/null
+++ b/.changeset/hungry-pears-vanish.md
@@ -0,0 +1,5 @@
+---
+'@eth-optimism/contracts': patch
+---
+
+ECDSA account interface contract moved to predeploys dir
diff --git a/packages/contracts/contracts/optimistic-ethereum/OVM/predeploys/OVM_ECDSAContractAccount.sol b/packages/contracts/contracts/optimistic-ethereum/OVM/predeploys/OVM_ECDSAContractAccount.sol
index f6a41466f530..8c93f9a4c92f 100644
--- a/packages/contracts/contracts/optimistic-ethereum/OVM/predeploys/OVM_ECDSAContractAccount.sol
+++ b/packages/contracts/contracts/optimistic-ethereum/OVM/predeploys/OVM_ECDSAContractAccount.sol
@@ -3,7 +3,7 @@ pragma solidity >0.5.0 <0.8.0;
 pragma experimental ABIEncoderV2;
 
 /* Interface Imports */
-import { iOVM_ECDSAContractAccount } from "../../iOVM/accounts/iOVM_ECDSAContractAccount.sol";
+import { iOVM_ECDSAContractAccount } from "../../iOVM/predeploys/iOVM_ECDSAContractAccount.sol";
 
 /* Library Imports */
 import { Lib_EIP155Tx } from "../../libraries/codec/Lib_EIP155Tx.sol";
diff --git a/packages/contracts/contracts/optimistic-ethereum/OVM/predeploys/OVM_SequencerEntrypoint.sol b/packages/contracts/contracts/optimistic-ethereum/OVM/predeploys/OVM_SequencerEntrypoint.sol
index 8581624d75c9..ebbacff35218 100644
--- a/packages/contracts/contracts/optimistic-ethereum/OVM/predeploys/OVM_SequencerEntrypoint.sol
+++ b/packages/contracts/contracts/optimistic-ethereum/OVM/predeploys/OVM_SequencerEntrypoint.sol
@@ -5,7 +5,7 @@ pragma experimental ABIEncoderV2;
 /* Library Imports */
 import { Lib_EIP155Tx } from "../../libraries/codec/Lib_EIP155Tx.sol";
 import { Lib_ExecutionManagerWrapper } from "../../libraries/wrappers/Lib_ExecutionManagerWrapper.sol";
-import { iOVM_ECDSAContractAccount } from "../../iOVM/accounts/iOVM_ECDSAContractAccount.sol";
+import { iOVM_ECDSAContractAccount } from "../../iOVM/predeploys/iOVM_ECDSAContractAccount.sol";
 
 /**
  * @title OVM_SequencerEntrypoint
diff --git a/packages/contracts/contracts/optimistic-ethereum/iOVM/accounts/iOVM_ECDSAContractAccount.sol b/packages/contracts/contracts/optimistic-ethereum/iOVM/predeploys/iOVM_ECDSAContractAccount.sol
similarity index 100%
rename from packages/contracts/contracts/optimistic-ethereum/iOVM/accounts/iOVM_ECDSAContractAccount.sol
rename to packages/contracts/contracts/optimistic-ethereum/iOVM/predeploys/iOVM_ECDSAContractAccount.sol