diff --git a/src/libraries/CalldataDecoder.sol b/src/libraries/CalldataDecoder.sol
index bd393c2c..88f93f41 100644
--- a/src/libraries/CalldataDecoder.sol
+++ b/src/libraries/CalldataDecoder.sol
@@ -91,6 +91,7 @@ library CalldataDecoder {
         }
     }
 
+    /// @dev equivalent to: abi.decode(params, (Currency, Currency)) in calldata
     function decodeCurrencyPair(bytes calldata params) internal pure returns (Currency currency0, Currency currency1) {
         assembly ("memory-safe") {
             currency0 := calldataload(params.offset)