diff --git a/contracts/ProxyLogics/SplitSwap/SplitSwap.sol b/contracts/ProxyLogics/SplitSwap/SplitSwap.sol
index b87fb53..b9828cb 100644
--- a/contracts/ProxyLogics/SplitSwap/SplitSwap.sol
+++ b/contracts/ProxyLogics/SplitSwap/SplitSwap.sol
@@ -300,7 +300,7 @@ contract SplitSwap is SplitResolver {
 
 contract InstaSwap is SplitSwap {
 
-    constructor(uint _version) public {
+    constructor() public {
         setAllowance(TokenInterface(daiAddr), eth2daiAddr);
         setAllowance(TokenInterface(daiAddr), kyberAddr);
         setAllowance(TokenInterface(daiAddr), uniswapAddr);