diff --git a/src/server.js b/src/server.js
index 4b3ef25..5c85ea3 100644
--- a/src/server.js
+++ b/src/server.js
@@ -34,5 +34,5 @@ app.post('/relay', controller.tornadoWithdraw)
 // app.post('/v1/miningWithdraw', controller.miningWithdraw)
 
 worker.start()
-app.listen(port || 8000)
-console.log(`Relayer ${version} started on port ${port || 8000}`)
+app.listen(port)
+console.log(`Relayer ${version} started on port ${port}`)
diff --git a/src/worker.js b/src/worker.js
index 861b96e..9964d8a 100644
--- a/src/worker.js
+++ b/src/worker.js
@@ -30,12 +30,9 @@ async function fetchTree() {
 }
 
 async function start() {
-  web3 = new Web3(rpcUrl, null, { transactionConfirmationBlocks: 1 })
-  const account = web3.eth.accounts.privateKeyToAccount('0x' + privateKey)
-  web3.eth.accounts.wallet.add('0x' + privateKey)
-  web3.eth.defaultAccount = account.address
-  updateConfig({ rewardAccount: account.address })
+  web3 = new Web3(rpcUrl)
   txManager = new TxManager({ privateKey, rpcUrl })
+  updateConfig({ rewardAccount: txManager.address })
   queue.process(process)
   redisSubscribe.subscribe('treeUpdate', fetchTree)
   await fetchTree()