diff --git a/core/types/eth_transaction.go b/core/types/eth_transaction.go
index 38126eefa..77b721880 100644
--- a/core/types/eth_transaction.go
+++ b/core/types/eth_transaction.go
@@ -21,6 +21,8 @@ import (
 	"math/big"
 	"sync/atomic"
 
+	"github.com/harmony-one/harmony/internal/params"
+
 	"github.com/ethereum/go-ethereum/common/hexutil"
 
 	nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
@@ -333,7 +335,7 @@ func (tx *EthTransaction) SenderAddress() (common.Address, error) {
 
 // IsEthCompatible returns whether the txn is ethereum compatible
 func (tx *EthTransaction) IsEthCompatible() bool {
-	return true
+	return params.IsEthCompatible(tx.ChainID())
 }
 
 // AsMessage returns the transaction as a core.Message.
diff --git a/rpc/eth/types.go b/rpc/eth/types.go
index 84a4b466b..3dc68d21c 100644
--- a/rpc/eth/types.go
+++ b/rpc/eth/types.go
@@ -77,7 +77,13 @@ func NewTransaction(
 	tx *types.EthTransaction, blockHash common.Hash,
 	blockNumber uint64, timestamp uint64, index uint64,
 ) (*Transaction, error) {
-	from, err := tx.SenderAddress()
+	from := common.Address{}
+	var err error
+	if tx.IsEthCompatible() {
+		from, err = tx.SenderAddress()
+	} else {
+		from, err = tx.ConvertToHmy().SenderAddress()
+	}
 	if err != nil {
 		return nil, err
 	}