diff --git a/src/Treasury.sol b/src/Treasury.sol
index c809d01..3731e30 100644
--- a/src/Treasury.sol
+++ b/src/Treasury.sol
@@ -25,9 +25,7 @@ contract GhostTreasury is GhostAccessControlled, ITreasury {
     using EnumerableSet for EnumerableSet.AddressSet;
 
     address public immutable FTSO;
-
     uint256 public totalReserves;
-    uint256 public totalDebt;
 
     mapping(STATUS => EnumerableSet.AddressSet) private _registry;
     mapping(STATUS => mapping(address => bool)) private _permissions;
@@ -62,9 +60,10 @@ contract GhostTreasury is GhostAccessControlled, ITreasury {
 
     function mint(address recipient, uint256 amount) external override {
         if (!_permissions[STATUS.REWARDMANAGER][msg.sender]) revert NotApproved();
-        if (amount > excessReserves()) revert InsufficientReserves();
-        IFTSO(FTSO).mint(recipient, amount);
-        emit Minted(msg.sender, recipient, amount);
+        if (amount <= excessReserves()) {
+            IFTSO(FTSO).mint(recipient, amount);
+            emit Minted(msg.sender, recipient, amount);
+        }
     }
 
     function withdraw(address token, uint256 amount) external onlyGovernor override {
@@ -90,8 +89,9 @@ contract GhostTreasury is GhostAccessControlled, ITreasury {
         gasValue = tokenValue(reserveToken, gasSpent);
         gasValue = FullMath.mulDiv(gasValue, totalSupply, totalReserves);
 
-        if (gasValue > excessReserves()) revert InsufficientReserves();
-        IFTSO(FTSO).mint(msg.sender, gasValue);
+        if (gasValue <= excessReserves()) {
+            IFTSO(FTSO).mint(msg.sender, gasValue);
+        }
     }
 
     function buyBack(
@@ -257,7 +257,12 @@ contract GhostTreasury is GhostAccessControlled, ITreasury {
     }
 
     function excessReserves() public view override returns (uint256) {
-        return totalReserves - (IFTSO(FTSO).totalSupply() - totalDebt);
+        uint256 ftsoSupply = IFTSO(FTSO).totalSupply();
+        uint256 currentTotalReserves = totalReserves;
+
+        return currentTotalReserves > ftsoSupply
+            ? currentTotalReserves - ftsoSupply
+            : 0;
     }
 
     function tokenValue(
diff --git a/src/interfaces/ITreasury.sol b/src/interfaces/ITreasury.sol
index 9c47031..8b7f9eb 100644
--- a/src/interfaces/ITreasury.sol
+++ b/src/interfaces/ITreasury.sol
@@ -6,7 +6,6 @@ interface ITreasury {
     error NotAccepted();
     error InvalidToken();
     error GasExceedsBounty();
-    error InsufficientReserves();
 
     enum STATUS {
         RESERVEDEPOSITOR,