diff --git a/pkg/eth/api.go b/pkg/eth/api.go
index 3c4fd6ec..3d5129fa 100644
--- a/pkg/eth/api.go
+++ b/pkg/eth/api.go
@@ -467,7 +467,7 @@ func (pea *PublicEthAPI) GetRawTransactionByHash(ctx context.Context, hash commo
 	// Retrieve a finalized transaction, or a pooled otherwise
 	tx, _, _, _, err := pea.B.GetTransaction(ctx, hash)
 	if tx != nil && err == nil {
-		return rlp.EncodeToBytes(tx)
+		return tx.MarshalBinary()
 	}
 	if pea.config.ProxyOnError {
 		var tx hexutil.Bytes
diff --git a/pkg/eth/backend_utils.go b/pkg/eth/backend_utils.go
index 789faa22..6965b6dd 100644
--- a/pkg/eth/backend_utils.go
+++ b/pkg/eth/backend_utils.go
@@ -275,7 +275,7 @@ func newRPCRawTransactionFromBlockIndex(b *types.Block, index uint64) hexutil.By
 	if index >= uint64(len(txs)) {
 		return nil
 	}
-	blob, _ := rlp.EncodeToBytes(txs[index])
+	blob, _ := txs[index].MarshalBinary()
 	return blob
 }