diff --git a/contracts/vault/VaultBase.sol b/contracts/vault/VaultBase.sol
index 3c639a8..e62ecce 100644
--- a/contracts/vault/VaultBase.sol
+++ b/contracts/vault/VaultBase.sol
@@ -208,7 +208,7 @@ abstract contract VaultBase {
     Recipient recipient,
     uint128 amount
   ) internal {
-    Lock memory lock = _locks[controller][fund];
+    Lock storage lock = _locks[controller][fund];
     require(lock.status() == LockStatus.Locked, VaultFundNotLocked());
 
     Account storage account = _accounts[controller][fund][recipient];
@@ -216,6 +216,8 @@ abstract contract VaultBase {
 
     account.balance.designated -= amount;
 
+    lock.value -= amount;
+
     _token.safeTransfer(address(0xdead), amount);
   }
 
diff --git a/test/Vault.tests.js b/test/Vault.tests.js
index bdffdc9..dd9561e 100644
--- a/test/Vault.tests.js
+++ b/test/Vault.tests.js
@@ -641,7 +641,10 @@ describe("Vault", function () {
         await vault.deposit(fund, account.address, 30)
         await vault.transfer(fund, account.address, account2.address, 20)
         await vault.transfer(fund, account2.address, account3.address, 10)
-        // some tokens are burned
+        // some designated tokens are burned
+        await vault.designate(fund, account2.address, 10)
+        await vault.burnDesignated(fund, account2.address, 5)
+        // some account is burned
         await vault.burnAccount(fund, account2.address)
         await expire()
         // some tokens are withdrawn