diff --git a/src/Blue.sol b/src/Blue.sol
index 9099e62d1..9e56b3a53 100644
--- a/src/Blue.sol
+++ b/src/Blue.sol
@@ -163,7 +163,7 @@ contract Blue is IBlue {
 
         emit Supply(id, msg.sender, onBehalf, amount, shares);
 
-        if (data.length > 0) IBlueSupplyCallback(msg.sender).onBlueSupply(amount, data);
+        if (data.length > 0) IBlueSupplyCallback(msg.sender).onBlueSupply(market.borrowableAsset, amount, data);
 
         IERC20(market.borrowableAsset).safeTransferFrom(msg.sender, address(this), amount);
     }
@@ -242,7 +242,7 @@ contract Blue is IBlue {
 
         emit Repay(id, msg.sender, onBehalf, amount, shares);
 
-        if (data.length > 0) IBlueRepayCallback(msg.sender).onBlueRepay(amount, data);
+        if (data.length > 0) IBlueRepayCallback(msg.sender).onBlueRepay(market.borrowableAsset, amount, data);
 
         IERC20(market.borrowableAsset).safeTransferFrom(msg.sender, address(this), amount);
     }
@@ -262,7 +262,9 @@ contract Blue is IBlue {
 
         emit SupplyCollateral(id, msg.sender, onBehalf, amount);
 
-        if (data.length > 0) IBlueSupplyCollateralCallback(msg.sender).onBlueSupplyCollateral(amount, data);
+        if (data.length > 0) {
+            IBlueSupplyCollateralCallback(msg.sender).onBlueSupplyCollateral(market.collateralAsset, amount, data);
+        }
 
         IERC20(market.collateralAsset).safeTransferFrom(msg.sender, address(this), amount);
     }
@@ -326,7 +328,7 @@ contract Blue is IBlue {
 
         emit Liquidate(id, msg.sender, borrower, repaid, repaidShares, seized, badDebtShares);
 
-        if (data.length > 0) IBlueLiquidateCallback(msg.sender).onBlueLiquidate(seized, repaid, data);
+        if (data.length > 0) IBlueLiquidateCallback(msg.sender).onBlueLiquidate(market.borrowableAsset, repaid, data);
 
         IERC20(market.borrowableAsset).safeTransferFrom(msg.sender, address(this), repaid);
     }
diff --git a/src/interfaces/IBlueCallbacks.sol b/src/interfaces/IBlueCallbacks.sol
index 902e2ddad..4d5809561 100644
--- a/src/interfaces/IBlueCallbacks.sol
+++ b/src/interfaces/IBlueCallbacks.sol
@@ -2,19 +2,19 @@
 pragma solidity >=0.5.0;
 
 interface IBlueLiquidateCallback {
-    function onBlueLiquidate(uint256 seized, uint256 repaid, bytes calldata data) external;
+    function onBlueLiquidate(address token, uint256 amount, bytes calldata data) external;
 }
 
 interface IBlueRepayCallback {
-    function onBlueRepay(uint256 amount, bytes calldata data) external;
+    function onBlueRepay(address token, uint256 amount, bytes calldata data) external;
 }
 
 interface IBlueSupplyCallback {
-    function onBlueSupply(uint256 amount, bytes calldata data) external;
+    function onBlueSupply(address token, uint256 amount, bytes calldata data) external;
 }
 
 interface IBlueSupplyCollateralCallback {
-    function onBlueSupplyCollateral(uint256 amount, bytes calldata data) external;
+    function onBlueSupplyCollateral(address token, uint256 amount, bytes calldata data) external;
 }
 
 interface IBlueFlashLoanCallback {
diff --git a/test/forge/Blue.t.sol b/test/forge/Blue.t.sol
index 8745ed857..7fdd41dcd 100644
--- a/test/forge/Blue.t.sol
+++ b/test/forge/Blue.t.sol
@@ -991,21 +991,21 @@ contract BlueTest is
 
     // Callback functions.
 
-    function onBlueSupply(uint256 amount, bytes memory data) external {
+    function onBlueSupply(address token, uint256 amount, bytes memory data) external {
         require(msg.sender == address(blue));
         bytes4 selector;
         (selector, data) = abi.decode(data, (bytes4, bytes));
         if (selector == this.testSupplyCallback.selector) {
-            borrowableAsset.approve(address(blue), amount);
+            ERC20(token).approve(address(blue), amount);
         }
     }
 
-    function onBlueSupplyCollateral(uint256 amount, bytes memory data) external {
+    function onBlueSupplyCollateral(address token, uint256 amount, bytes memory data) external {
         require(msg.sender == address(blue));
         bytes4 selector;
         (selector, data) = abi.decode(data, (bytes4, bytes));
         if (selector == this.testSupplyCollateralCallback.selector) {
-            collateralAsset.approve(address(blue), amount);
+            ERC20(token).approve(address(blue), amount);
         } else if (selector == this.testFlashActions.selector) {
             uint256 toBorrow = abi.decode(data, (uint256));
             collateralAsset.setBalance(address(this), amount);
@@ -1014,24 +1014,24 @@ contract BlueTest is
         }
     }
 
-    function onBlueRepay(uint256 amount, bytes memory data) external {
+    function onBlueRepay(address token, uint256 amount, bytes memory data) external {
         require(msg.sender == address(blue));
         bytes4 selector;
         (selector, data) = abi.decode(data, (bytes4, bytes));
         if (selector == this.testRepayCallback.selector) {
-            borrowableAsset.approve(address(blue), amount);
+            ERC20(token).approve(address(blue), amount);
         } else if (selector == this.testFlashActions.selector) {
             uint256 toWithdraw = abi.decode(data, (uint256));
             blue.withdrawCollateral(market, toWithdraw, address(this), address(this));
         }
     }
 
-    function onBlueLiquidate(uint256, uint256 repaid, bytes memory data) external {
+    function onBlueLiquidate(address token, uint256 amount, bytes memory data) external {
         require(msg.sender == address(blue));
         bytes4 selector;
         (selector, data) = abi.decode(data, (bytes4, bytes));
         if (selector == this.testLiquidateCallback.selector) {
-            borrowableAsset.approve(address(blue), repaid);
+            ERC20(token).approve(address(blue), amount);
         }
     }