use saved val (#121)

Uniswap · Nov 10, 2022 · ac5fa13 · ac5fa13
1 parent dc8bb4b
commit ac5fa13
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/AllowanceTransfer.sol b/src/AllowanceTransfer.sol
@@ -84,7 +84,7 @@ contract AllowanceTransfer is IAllowanceTransfer, EIP712 {
                 revert InsufficientAllowance();
             } else {
                 unchecked {
-                    allowed.amount -= amount;
+                    allowed.amount = uint160(maxAmount) - amount;
                 }
             }
         }