diff --git a/core/genesis_util.go b/core/genesis_util.go
index 4fa5be449..45a075976 100644
--- a/core/genesis_util.go
+++ b/core/genesis_util.go
@@ -54,7 +54,7 @@ func StringToBigInt(s string, base int) *big.Int {
 func convertToGenesisItems(gc genesisConfig) []GenesisItem {
 	gi := []GenesisItem{}
 	for k, v := range gc {
-		gi = append(gi, GenesisItem{StringToBigInt(k, 16), StringToBigInt(v["wei"], 10)})
+		gi = append(gi, GenesisItem{StringToBigInt(k, 16), StringToBigInt(v["nano"], 10)})
 	}
 	sort.Slice(gi, func(i, j int) bool {
 		return gi[i].Addr.Cmp(gi[j].Addr) == -1
diff --git a/internal/hmyapi/blockchain.go b/internal/hmyapi/blockchain.go
index d4178dfd2..b1d410df7 100644
--- a/internal/hmyapi/blockchain.go
+++ b/internal/hmyapi/blockchain.go
@@ -68,7 +68,7 @@ func (s *PublicBlockChainAPI) GetStorageAt(ctx context.Context, address common.A
 	return res[:], state.Error()
 }
 
-// GetBalance returns the amount of wei for the given address in the state of the
+// GetBalance returns the amount of Nano for the given address in the state of the
 // given block number. The rpc.LatestBlockNumber and rpc.PendingBlockNumber meta
 // block numbers are also allowed.
 func (s *PublicBlockChainAPI) GetBalance(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (*hexutil.Big, error) {