diff --git a/contracts/vortex/CarbonVortex.sol b/contracts/vortex/CarbonVortex.sol
index cbf53d12..053fe01d 100644
--- a/contracts/vortex/CarbonVortex.sol
+++ b/contracts/vortex/CarbonVortex.sol
@@ -679,10 +679,6 @@ contract CarbonVortex is ICarbonVortex, Upgradeable, ReentrancyGuardUpgradeable,
         if (sourceAmount == 0) {
             revert InvalidTrade();
         }
-        // revert if unnecessary native token is received
-        if (_finalTargetToken != NATIVE_TOKEN && msg.value > 0) {
-            revert UnnecessaryNativeTokenReceived();
-        }
 
         // check enough final target token (if final target token is native) has been sent for the trade
         if (_finalTargetToken == NATIVE_TOKEN) {
@@ -691,6 +687,10 @@ contract CarbonVortex is ICarbonVortex, Upgradeable, ReentrancyGuardUpgradeable,
             }
             payable(_transferAddress).sendValue(sourceAmount);
         } else {
+            // revert if unnecessary native token is received
+            if (msg.value > 0) {
+                revert UnnecessaryNativeTokenReceived();
+            }
             // transfer the tokens from the user to the _transferAddress
             _finalTargetToken.safeTransferFrom(msg.sender, _transferAddress, sourceAmount);
         }