diff --git a/common/types.go b/common/types.go
index 76e7be58fe..0b94fb2c25 100644
--- a/common/types.go
+++ b/common/types.go
@@ -18,15 +18,15 @@ package common
 
 import (
 	"encoding/hex"
+	"encoding/json"
 	"fmt"
 	"math/big"
 	"math/rand"
 	"reflect"
+	"strings"
 
-	"encoding/json"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/crypto/sha3"
-	"strings"
 )
 
 const (
diff --git a/rpc/client.go b/rpc/client.go
index 68745c6cbe..77b4d5ee01 100644
--- a/rpc/client.go
+++ b/rpc/client.go
@@ -25,6 +25,7 @@ import (
 	"fmt"
 	"net"
 	"net/url"
+	"os"
 	"reflect"
 	"strconv"
 	"strings"
@@ -33,7 +34,6 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/log"
-	"os"
 )
 
 var (