diff --git a/ethereum/contracts/core/Reputation.sol b/ethereum/contracts/core/Reputation.sol
index 3ad4250..f9eabc4 100644
--- a/ethereum/contracts/core/Reputation.sol
+++ b/ethereum/contracts/core/Reputation.sol
@@ -21,5 +21,3 @@ contract Reputation is ERC20("Reputation", "REP") {
         revert("REP transfer is not allowed");
     }
 }
-
-// TODO: try implementing as ERC721