diff --git a/evm/src/uniswap-v2/UniswapV2SwapAdapter.sol b/evm/src/uniswap-v2/UniswapV2SwapAdapter.sol
index fad2924..9329bc8 100644
--- a/evm/src/uniswap-v2/UniswapV2SwapAdapter.sol
+++ b/evm/src/uniswap-v2/UniswapV2SwapAdapter.sol
@@ -152,7 +152,7 @@ contract UniswapV2SwapAdapter is ISwapAdapter {
         uint256 reserveIn,
         uint256 reserveOut
     ) internal pure returns (uint256 amountIn) {
-        if (amountIn == 0) {
+        if (amountOut == 0) {
             return 0;
         }
         if (reserveIn == 0) {