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Update multihop-swaps.md #689

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Update multihop-swaps.md #689

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4 changes: 2 additions & 2 deletions docs/contracts/v3/guides/swaps/multihop-swaps.md
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Original file line number Diff line number Diff line change
Expand Up @@ -146,7 +146,7 @@ An exact output swap will swap a variable amount of the input token for a fixed
// If the swap did not require the full amountInMaximum to achieve the exact amountOut then we refund msg.sender and approve the router to spend 0.
if (amountIn < amountInMaximum) {
TransferHelper.safeApprove(DAI, address(swapRouter), 0);
TransferHelper.safeTransferFrom(DAI, address(this), msg.sender, amountInMaximum - amountIn);
TransferHelper.safeTransfer(DAI, msg.sender, amountInMaximum - amountIn);
}
}
```
Expand Down Expand Up @@ -244,7 +244,7 @@ contract SwapExamples {
// If the swap did not require the full amountInMaximum to achieve the exact amountOut then we refund msg.sender and approve the router to spend 0.
if (amountIn < amountInMaximum) {
TransferHelper.safeApprove(DAI, address(swapRouter), 0);
TransferHelper.safeTransferFrom(DAI, address(this), msg.sender, amountInMaximum - amountIn);
TransferHelper.safeTransfer(DAI, msg.sender, amountInMaximum - amountIn);
}
}
}
Expand Down