diff --git a/src/pool-cl/CLMigrator.sol b/src/pool-cl/CLMigrator.sol
index b0d5692..e66c3c9 100644
--- a/src/pool-cl/CLMigrator.sol
+++ b/src/pool-cl/CLMigrator.sol
@@ -17,7 +17,7 @@ contract CLMigrator is ICLMigrator, BaseMigrator {
 
     function migrateFromV2(
         V2PoolParams calldata v2PoolParams,
-        V4CLPoolParams calldata v4MintParams,
+        V4CLPoolParams calldata v4PoolParams,
         uint256 extraAmount0,
         uint256 extraAmount1
     ) external payable override {
@@ -25,39 +25,39 @@ contract CLMigrator is ICLMigrator, BaseMigrator {
 
         /// @notice if user mannually specify the price range, they might need to send extra token
         batchAndNormalizeTokens(
-            v4MintParams.poolKey.currency0, v4MintParams.poolKey.currency1, extraAmount0, extraAmount1
+            v4PoolParams.poolKey.currency0, v4PoolParams.poolKey.currency1, extraAmount0, extraAmount1
         );
 
         uint256 amount0In = amount0Received + extraAmount0;
         uint256 amount1In = amount1Received + extraAmount1;
         INonfungiblePositionManager.MintParams memory mintParams = INonfungiblePositionManager.MintParams({
-            poolKey: v4MintParams.poolKey,
-            tickLower: v4MintParams.tickLower,
-            tickUpper: v4MintParams.tickUpper,
-            salt: v4MintParams.salt,
+            poolKey: v4PoolParams.poolKey,
+            tickLower: v4PoolParams.tickLower,
+            tickUpper: v4PoolParams.tickUpper,
+            salt: v4PoolParams.salt,
             amount0Desired: amount0In,
             amount1Desired: amount1In,
-            amount0Min: v4MintParams.amount0Min,
-            amount1Min: v4MintParams.amount1Min,
-            recipient: v4MintParams.recipient,
-            deadline: v4MintParams.deadline
+            amount0Min: v4PoolParams.amount0Min,
+            amount1Min: v4PoolParams.amount1Min,
+            recipient: v4PoolParams.recipient,
+            deadline: v4PoolParams.deadline
         });
         (,, uint256 amount0Consumed, uint256 amount1Consumed) = _addLiquidityToTargetPool(mintParams);
 
         // refund if necessary, ETH is supported by CurrencyLib
         unchecked {
             if (amount0In > amount0Consumed) {
-                v4MintParams.poolKey.currency0.transfer(v4MintParams.recipient, amount0In - amount0Consumed);
+                v4PoolParams.poolKey.currency0.transfer(v4PoolParams.recipient, amount0In - amount0Consumed);
             }
             if (amount1In > amount1Consumed) {
-                v4MintParams.poolKey.currency1.transfer(v4MintParams.recipient, amount1In - amount1Consumed);
+                v4PoolParams.poolKey.currency1.transfer(v4PoolParams.recipient, amount1In - amount1Consumed);
             }
         }
     }
 
     function migrateFromV3(
         V3PoolParams calldata v3PoolParams,
-        V4CLPoolParams calldata v4MintParams,
+        V4CLPoolParams calldata v4PoolParams,
         uint256 extraAmount0,
         uint256 extraAmount1
     ) external payable override {
@@ -65,32 +65,32 @@ contract CLMigrator is ICLMigrator, BaseMigrator {
 
         /// @notice if user mannually specify the price range, they need to send extra token
         batchAndNormalizeTokens(
-            v4MintParams.poolKey.currency0, v4MintParams.poolKey.currency1, extraAmount0, extraAmount1
+            v4PoolParams.poolKey.currency0, v4PoolParams.poolKey.currency1, extraAmount0, extraAmount1
         );
 
         uint256 amount0In = amount0Received + extraAmount0;
         uint256 amount1In = amount1Received + extraAmount1;
         INonfungiblePositionManager.MintParams memory mintParams = INonfungiblePositionManager.MintParams({
-            poolKey: v4MintParams.poolKey,
-            tickLower: v4MintParams.tickLower,
-            tickUpper: v4MintParams.tickUpper,
-            salt: v4MintParams.salt,
+            poolKey: v4PoolParams.poolKey,
+            tickLower: v4PoolParams.tickLower,
+            tickUpper: v4PoolParams.tickUpper,
+            salt: v4PoolParams.salt,
             amount0Desired: amount0In,
             amount1Desired: amount1In,
-            amount0Min: v4MintParams.amount0Min,
-            amount1Min: v4MintParams.amount1Min,
-            recipient: v4MintParams.recipient,
-            deadline: v4MintParams.deadline
+            amount0Min: v4PoolParams.amount0Min,
+            amount1Min: v4PoolParams.amount1Min,
+            recipient: v4PoolParams.recipient,
+            deadline: v4PoolParams.deadline
         });
         (,, uint256 amount0Consumed, uint256 amount1Consumed) = _addLiquidityToTargetPool(mintParams);
 
         // refund if necessary, ETH is supported by CurrencyLib
         unchecked {
             if (amount0In > amount0Consumed) {
-                v4MintParams.poolKey.currency0.transfer(v4MintParams.recipient, amount0In - amount0Consumed);
+                v4PoolParams.poolKey.currency0.transfer(v4PoolParams.recipient, amount0In - amount0Consumed);
             }
             if (amount1In > amount1Consumed) {
-                v4MintParams.poolKey.currency1.transfer(v4MintParams.recipient, amount1In - amount1Consumed);
+                v4PoolParams.poolKey.currency1.transfer(v4PoolParams.recipient, amount1In - amount1Consumed);
             }
         }
     }
diff --git a/src/pool-cl/interfaces/ICLMigrator.sol b/src/pool-cl/interfaces/ICLMigrator.sol
index 878e599..733c350 100644
--- a/src/pool-cl/interfaces/ICLMigrator.sol
+++ b/src/pool-cl/interfaces/ICLMigrator.sol
@@ -23,7 +23,7 @@ interface ICLMigrator is IBaseMigrator {
 
     function migrateFromV2(
         V2PoolParams calldata v2PoolParams,
-        V4CLPoolParams calldata v4MintParams,
+        V4CLPoolParams calldata v4PoolParams,
         // extra funds to be added
         uint256 extraAmount0,
         uint256 extraAmount1
@@ -31,7 +31,7 @@ interface ICLMigrator is IBaseMigrator {
 
     function migrateFromV3(
         V3PoolParams calldata v3PoolParams,
-        V4CLPoolParams calldata v4MintParams,
+        V4CLPoolParams calldata v4PoolParams,
         // extra funds to be added
         uint256 extraAmount0,
         uint256 extraAmount1
diff --git a/test/pool-cl/migrator/CLMigratorFromV3.sol b/test/pool-cl/migrator/CLMigratorFromV3.sol
index c087744..5fa6900 100644
--- a/test/pool-cl/migrator/CLMigratorFromV3.sol
+++ b/test/pool-cl/migrator/CLMigratorFromV3.sol
@@ -448,7 +448,6 @@ abstract contract CLMigratorFromV3 is OldVersionHelper, GasSnapshot {
     }
 
     function testMigrateFromV3AddExtraAmountThroughWETH() public {
-        // 1. mint some liquidity to the v2 pair
         // 1. mint some liquidity to the v3 pool
         _mintV3Liquidity(address(weth), address(token0));
         assertEq(v3Nfpm.ownerOf(1), address(this));
@@ -487,7 +486,7 @@ abstract contract CLMigratorFromV3 is OldVersionHelper, GasSnapshot {
 
         weth.approve(address(migrator), 20 ether);
         IERC20(address(token0)).approve(address(migrator), 20 ether);
-        // 4. migrate from v2 to v4, not sending ETH denotes pay by WETH
+        // 4. migrate from v3 to v4, not sending ETH denotes pay by WETH
         migrator.migrateFromV3(v3PoolParams, v4MintParams, 20 ether, 20 ether);
 
         // necessary checks
@@ -664,7 +663,7 @@ abstract contract CLMigratorFromV3 is OldVersionHelper, GasSnapshot {
         uint256 balance0Before = token0.balanceOf(address(this));
         uint256 balance1Before = token1.balanceOf(address(this));
 
-        // 4. migrate from v2 to v4
+        // 4. migrate from v3 to v4
         migrator.migrateFromV3(v3PoolParams, v4MintParams, 0, 0);
 
         // necessary checks
@@ -675,7 +674,6 @@ abstract contract CLMigratorFromV3 is OldVersionHelper, GasSnapshot {
         // WETH balance unchanged
         assertEq(weth.balanceOf(address(this)), 100 ether);
 
-        // v2 pair should be burned already
         // v3 liqudity should be 0
         (,,,,,,, uint128 liquidityFromV3After,,,,) = v3Nfpm.positions(1);
         assertEq(liquidityFromV3After, 0);