--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -516,8 +516,8 @@
 	}
 
 	/// @notice Get the approved address for a single NFT
-	/// @dev Throws if `_tokenId` is not a valid NFT
-	/// @param _tokenId The NFT to find the approved address for
+	/// @dev Throws if `tokenId` is not a valid NFT
+	/// @param tokenId The NFT to find the approved address for
 	/// @return The approved address for this NFT, or the zero address if there is none
 	fn get_approved(&self, token_id: U256) -> Result<Address> {
 		let token = token_id.try_into()?;