diff --git a/yarn-project/archiver/src/archiver/config.ts b/yarn-project/archiver/src/archiver/config.ts
index 46652800e26..292475dcdfb 100644
--- a/yarn-project/archiver/src/archiver/config.ts
+++ b/yarn-project/archiver/src/archiver/config.ts
@@ -63,6 +63,7 @@ export function getConfigEnvVars(): ArchiverConfig {
     SEARCH_START_BLOCK,
     API_KEY,
     INBOX_CONTRACT_ADDRESS,
+    OUTBOX_CONTRACT_ADDRESS,
     REGISTRY_CONTRACT_ADDRESS,
     DATA_DIRECTORY,
   } = process.env;
@@ -71,7 +72,7 @@ export function getConfigEnvVars(): ArchiverConfig {
     rollupAddress: ROLLUP_CONTRACT_ADDRESS ? EthAddress.fromString(ROLLUP_CONTRACT_ADDRESS) : EthAddress.ZERO,
     registryAddress: REGISTRY_CONTRACT_ADDRESS ? EthAddress.fromString(REGISTRY_CONTRACT_ADDRESS) : EthAddress.ZERO,
     inboxAddress: INBOX_CONTRACT_ADDRESS ? EthAddress.fromString(INBOX_CONTRACT_ADDRESS) : EthAddress.ZERO,
-    outboxAddress: EthAddress.ZERO,
+    outboxAddress: OUTBOX_CONTRACT_ADDRESS ? EthAddress.fromString(OUTBOX_CONTRACT_ADDRESS) : EthAddress.ZERO,
     contractDeploymentEmitterAddress: CONTRACT_DEPLOYMENT_EMITTER_ADDRESS
       ? EthAddress.fromString(CONTRACT_DEPLOYMENT_EMITTER_ADDRESS)
       : EthAddress.ZERO,
diff --git a/yarn-project/end-to-end/src/fixtures/cross_chain_test_harness.ts b/yarn-project/end-to-end/src/fixtures/cross_chain_test_harness.ts
index b546c42196d..281f48a3a0f 100644
--- a/yarn-project/end-to-end/src/fixtures/cross_chain_test_harness.ts
+++ b/yarn-project/end-to-end/src/fixtures/cross_chain_test_harness.ts
@@ -26,9 +26,9 @@ export class CrossChainTestHarness {
     const ethAccount = EthAddress.fromString((await walletClient.getAddresses())[0]);
     const owner = wallet.getCompleteAddress();
     const l1ContractAddresses = (await pxeService.getNodeInfo()).l1ContractAddresses;
-
+    
     const outbox = getContract({
-      address: l1ContractAddresses.outboxAddress!.toString(),
+      address: l1ContractAddresses.outboxAddress.toString(),
       abi: OutboxAbi,
       publicClient,
     });
diff --git a/yarn-project/end-to-end/src/fixtures/utils.ts b/yarn-project/end-to-end/src/fixtures/utils.ts
index ea37f3056c5..be53fabf8c2 100644
--- a/yarn-project/end-to-end/src/fixtures/utils.ts
+++ b/yarn-project/end-to-end/src/fixtures/utils.ts
@@ -289,6 +289,7 @@ export async function setup(numberOfAccounts = 1, opts: SetupOptions = {}): Prom
   config.l1Contracts.contractDeploymentEmitterAddress =
     deployL1ContractsValues.l1ContractAddresses.contractDeploymentEmitterAddress;
   config.l1Contracts.inboxAddress = deployL1ContractsValues.l1ContractAddresses.inboxAddress;
+  config.l1Contracts.outboxAddress = deployL1ContractsValues.l1ContractAddresses.outboxAddress;
 
   logger('Creating and synching an aztec node...');
   const aztecNode = await AztecNodeService.createAndSync(config);