diff --git a/contracts/interfaces/IUniswapV2Exchange.sol b/contracts/interfaces/IUniswapV2Exchange.sol
index b210c16..d3ad448 100644
--- a/contracts/interfaces/IUniswapV2Exchange.sol
+++ b/contracts/interfaces/IUniswapV2Exchange.sol
@@ -21,5 +21,5 @@ interface IUniswapV2Exchange {
     function skim(address to) external;
     function sync() external;
 
-    function initialize(address, address) external; // only called once by the factory on deploy
+    function initialize(address, address) external;
 }
diff --git a/contracts/interfaces/IUniswapV2Factory.sol b/contracts/interfaces/IUniswapV2Factory.sol
index 453f635..0d65f72 100644
--- a/contracts/interfaces/IUniswapV2Factory.sol
+++ b/contracts/interfaces/IUniswapV2Factory.sol
@@ -13,5 +13,5 @@ interface IUniswapV2Factory {
     function createExchange(address tokenA, address tokenB) external returns (address exchange);
 
     function setFeeTo(address) external;
-    function setFeeToSetter(address) external;    
+    function setFeeToSetter(address) external;
 }