diff --git a/client/txgen/main.go b/client/txgen/main.go
index 030da3a30..59c96971a 100644
--- a/client/txgen/main.go
+++ b/client/txgen/main.go
@@ -95,7 +95,7 @@ func generateSimulatedTransactions(subsetId, numSubset int, shardId int, dataNod
 	txInfo.txCount = 0
 
 UTXOLOOP:
-    // Loop over all addresses
+	// Loop over all addresses
 	for address, txMap := range dataNodes[shardId].UtxoPool.UtxoMap {
 		if int(binary.BigEndian.Uint32(address[:]))%numSubset == subsetId%numSubset { // Work on one subset of utxo at a time
 			txInfo.address = address
diff --git a/client/utils.go b/client/utils.go
index ee9c4730f..ce7e0911e 100644
--- a/client/utils.go
+++ b/client/utils.go
@@ -2,12 +2,12 @@ package client
 
 import (
 	"bytes"
-	"github.com/simple-rules/harmony-benchmark/crypto/pki"
 	"io"
 	"log"
 	"net/http"
 	"sync"
 
+	"github.com/simple-rules/harmony-benchmark/crypto/pki"
 )
 
 var AddressToIntPriKeyMap map[[20]byte]int // For convenience, we use int as the secret seed for generating private key