diff --git a/x/multi-staking/types/key.go b/x/multi-staking/types/key.go
index 244a5e10..338a50fb 100644
--- a/x/multi-staking/types/key.go
+++ b/x/multi-staking/types/key.go
@@ -86,7 +86,6 @@ func DelAddrAndValAddrFromUnlockID(unlockIDByte []byte) (multiStakerAddr sdk.Acc
 
 func (l LockID) ToByte() []byte {
 	bz, err := json.Marshal(l)
-
 	if err != nil {
 		panic("can not Marshal")
 	}
@@ -95,7 +94,6 @@ func (l LockID) ToByte() []byte {
 
 func (l UnlockID) ToByte() []byte {
 	bz, err := json.Marshal(l)
-
 	if err != nil {
 		panic("can not Marshal")
 	}
diff --git a/x/multi-staking/types/key_test.go b/x/multi-staking/types/key_test.go
index a65e2d36..0970eb07 100644
--- a/x/multi-staking/types/key_test.go
+++ b/x/multi-staking/types/key_test.go
@@ -3,10 +3,9 @@ package types_test
 import (
 	"testing"
 
-	"github.com/stretchr/testify/require"
-
 	"github.com/realio-tech/multi-staking-module/testutil"
 	mulStakingtypes "github.com/realio-tech/multi-staking-module/x/multi-staking/types"
+	"github.com/stretchr/testify/require"
 )
 
 func TestDelAddrAndValAddrFromLockID(t *testing.T) {