diff --git a/.gitignore b/.gitignore
index 12942d27..9febdea3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ test-blockchain/data
 *.log
 
 .DS_Store
+.vscode
 *.env
 
 coverage/
diff --git a/contracts/root/depositManager/DepositManager.sol b/contracts/root/depositManager/DepositManager.sol
index 7067691f..4abb411f 100644
--- a/contracts/root/depositManager/DepositManager.sol
+++ b/contracts/root/depositManager/DepositManager.sol
@@ -171,7 +171,7 @@ contract DepositManager is DepositManagerStorage, IDepositManager, ERC721Holder
         }
         // new: bridge POL as MATIC, child chain behaviour does not change
         else if (_token == registry.contractMap(keccak256("pol"))) {
-            _token == registry.contractMap(keccak256("matic"));
+            _token = registry.contractMap(keccak256("matic"));
         }
 
         deposits[_depositId] = DepositBlock(keccak256(abi.encodePacked(_user, _token, _amountOrToken)), now);
diff --git a/test/helpers/utils.js b/test/helpers/utils.js
index 78129bea..2d2d28e6 100644
--- a/test/helpers/utils.js
+++ b/test/helpers/utils.js
@@ -252,7 +252,7 @@ export async function depositOnRoot(
   const NewDepositBlockEvent = logs.find(
     log => log.event === 'NewDepositBlock'
   )
-  return NewDepositBlockEvent.args.depositBlockId
+  return NewDepositBlockEvent
 }
 
 export async function deposit(
@@ -265,13 +265,14 @@ export async function deposit(
 ) {
   let depositBlockId
   if (options.rootDeposit) {
-    depositBlockId = await depositOnRoot(
+    const newDepositBlockEvent = await depositOnRoot(
       depositManager,
       rootContract,
       user,
       amountOrToken,
       options
     )
+    depositBlockId = newDepositBlockEvent.args.depositBlockId
   } else {
     depositBlockId = '0x' + crypto.randomBytes(32).toString('hex')
   }
diff --git a/test/integration/root/DepositManagerUpdate.test.js b/test/integration/root/DepositManagerUpdate.test.js
index d69583d1..4b2c30ee 100644
--- a/test/integration/root/DepositManagerUpdate.test.js
+++ b/test/integration/root/DepositManagerUpdate.test.js
@@ -102,14 +102,18 @@ contract('DepositManager Update @skip-on-coverage', async function(accounts) {
       const bob = '0x' + crypto.randomBytes(20).toString('hex')
 
       // using the utils function more granularly here so we can call fireDepositFromMainToMatic with the correct token address
-      const depositBlockId = await utils.depositOnRoot(
+      const newDepositBlockEvent = await utils.depositOnRoot(
         depositManager,
         pol,
         bob,
         amount,
         { rootDeposit: true, erc20: true }
       )
-      await utils.fireDepositFromMainToMatic(childContracts.childChain, '0xa', bob, e20.rootERC20.address, amount, depositBlockId)
+
+      // token has been changed to MATIC
+      assert.strictEqual(newDepositBlockEvent.args.token, e20.rootERC20.address)
+
+      await utils.fireDepositFromMainToMatic(childContracts.childChain, '0xa', bob, e20.rootERC20.address, amount, newDepositBlockEvent.args.depositBlockId)
 
       // deposit on child chain is technically still in MATIC
       utils.assertBigNumberEquality(await e20.childToken.balanceOf(bob), amount)