diff --git a/yarn-project/end-to-end/src/e2e_cross_chain_messaging.test.ts b/yarn-project/end-to-end/src/e2e_cross_chain_messaging.test.ts
index 57d02f6cccad..52bfa8b5b06b 100644
--- a/yarn-project/end-to-end/src/e2e_cross_chain_messaging.test.ts
+++ b/yarn-project/end-to-end/src/e2e_cross_chain_messaging.test.ts
@@ -11,7 +11,6 @@ import {
   computeAuthWitMessageHash,
 } from '@aztec/aztec.js';
 import { sha256ToField } from '@aztec/foundation/crypto';
-import { serializeToBuffer } from '@aztec/foundation/serialize';
 import { TokenBridgeContract, TokenContract } from '@aztec/noir-contracts.js';
 
 import { toFunctionSelector } from 'viem/utils';
diff --git a/yarn-project/end-to-end/src/e2e_outbox.test.ts b/yarn-project/end-to-end/src/e2e_outbox.test.ts
index 071c4d882ae3..e94ecec0cd56 100644
--- a/yarn-project/end-to-end/src/e2e_outbox.test.ts
+++ b/yarn-project/end-to-end/src/e2e_outbox.test.ts
@@ -103,15 +103,13 @@ describe('E2E Outbox Tests', () => {
   }
 
   function makeL2ToL1Message(recipient: EthAddress, content: Fr = Fr.ZERO): Fr {
-    const leaf = sha256ToField(
-      [
-        contract.address,
-        new Fr(1), // aztec version
-        recipient.toBuffer32(),
-        new Fr(deployL1ContractsValues.publicClient.chain.id), // chain id
-        content,
-      ]
-    );
+    const leaf = sha256ToField([
+      contract.address,
+      new Fr(1), // aztec version
+      recipient.toBuffer32(),
+      new Fr(deployL1ContractsValues.publicClient.chain.id), // chain id
+      content,
+    ]);
 
     return leaf;
   }
diff --git a/yarn-project/end-to-end/src/e2e_public_cross_chain_messaging.test.ts b/yarn-project/end-to-end/src/e2e_public_cross_chain_messaging.test.ts
index 93cb2c56bc43..740fb2a5c991 100644
--- a/yarn-project/end-to-end/src/e2e_public_cross_chain_messaging.test.ts
+++ b/yarn-project/end-to-end/src/e2e_public_cross_chain_messaging.test.ts
@@ -15,7 +15,6 @@ import {
   computeMessageSecretHash,
 } from '@aztec/aztec.js';
 import { sha256ToField } from '@aztec/foundation/crypto';
-import { serializeToBuffer } from '@aztec/foundation/serialize';
 import { InboxAbi, OutboxAbi } from '@aztec/l1-artifacts';
 import { TestContract } from '@aztec/noir-contracts.js';
 import { TokenContract } from '@aztec/noir-contracts.js/Token';
diff --git a/yarn-project/end-to-end/src/shared/cross_chain_test_harness.ts b/yarn-project/end-to-end/src/shared/cross_chain_test_harness.ts
index 887aef53d3b2..89f8778ae5f6 100644
--- a/yarn-project/end-to-end/src/shared/cross_chain_test_harness.ts
+++ b/yarn-project/end-to-end/src/shared/cross_chain_test_harness.ts
@@ -363,23 +363,19 @@ export class CrossChainTestHarness {
   }
 
   getL2ToL1MessageLeaf(withdrawAmount: bigint, callerOnL1: EthAddress = EthAddress.ZERO): Fr {
-    const content = sha256ToField(
-      [
-        Buffer.from(toFunctionSelector('withdraw(address,uint256,address)').substring(2), 'hex'),
-        this.ethAccount.toBuffer32(),
-        new Fr(withdrawAmount).toBuffer(),
-        callerOnL1.toBuffer32(),
-      ]
-    );
-    const leaf = sha256ToField(
-      [
-        this.l2Bridge.address.toBuffer(),
-        new Fr(1).toBuffer(), // aztec version
-        this.tokenPortalAddress.toBuffer32() ?? Buffer.alloc(32, 0),
-        new Fr(this.publicClient.chain.id).toBuffer(), // chain id
-        content.toBuffer(),
-      ]
-    );
+    const content = sha256ToField([
+      Buffer.from(toFunctionSelector('withdraw(address,uint256,address)').substring(2), 'hex'),
+      this.ethAccount.toBuffer32(),
+      new Fr(withdrawAmount).toBuffer(),
+      callerOnL1.toBuffer32(),
+    ]);
+    const leaf = sha256ToField([
+      this.l2Bridge.address.toBuffer(),
+      new Fr(1).toBuffer(), // aztec version
+      this.tokenPortalAddress.toBuffer32() ?? Buffer.alloc(32, 0),
+      new Fr(this.publicClient.chain.id).toBuffer(), // chain id
+      content.toBuffer(),
+    ]);
 
     return leaf;
   }