diff --git a/contracts/coordinator/test/libs.ts b/contracts/coordinator/test/libs.ts
index 1ef208b637..baa97b597e 100644
--- a/contracts/coordinator/test/libs.ts
+++ b/contracts/coordinator/test/libs.ts
@@ -74,7 +74,6 @@ describe('Libs tests', () => {
             const expectedApprovalHash = hashUtils.getApprovalHashHex(
                 signedTx,
                 coordinatorContract.address,
-                chainId,
                 txOrigin,
                 approvalExpirationTimeSeconds,
             );
diff --git a/contracts/coordinator/test/utils/approval_factory.ts b/contracts/coordinator/test/utils/approval_factory.ts
index 36c90cd356..cb4bfd6b4e 100644
--- a/contracts/coordinator/test/utils/approval_factory.ts
+++ b/contracts/coordinator/test/utils/approval_factory.ts
@@ -8,12 +8,10 @@ import { hashUtils, SignedCoordinatorApproval } from './index';
 export class ApprovalFactory {
     private readonly _privateKey: Buffer;
     private readonly _verifyingContractAddress: string;
-    private readonly _chainId: number;
 
     constructor(privateKey: Buffer, verifyingContractAddress: string, chainId: number) {
         this._privateKey = privateKey;
         this._verifyingContractAddress = verifyingContractAddress;
-        this._chainId = chainId;
     }
 
     public newSignedApproval(
@@ -25,7 +23,6 @@ export class ApprovalFactory {
         const approvalHashBuff = hashUtils.getApprovalHashBuffer(
             transaction,
             this._verifyingContractAddress,
-            this._chainId,
             txOrigin,
             approvalExpirationTimeSeconds,
         );
diff --git a/packages/order-utils/src/eip712_utils.ts b/packages/order-utils/src/eip712_utils.ts
index 17f95ce52c..aefba4d31c 100644
--- a/packages/order-utils/src/eip712_utils.ts
+++ b/packages/order-utils/src/eip712_utils.ts
@@ -113,6 +113,7 @@ export const eip712Utils = {
             name: constants.COORDINATOR_DOMAIN_NAME,
             version: constants.COORDINATOR_DOMAIN_VERSION,
             verifyingContractAddress,
+            chainId: transaction.chainId,
         };
         const transactionHash = transactionHashUtils.getTransactionHashHex(transaction);
         const approval = {