diff --git a/pkg/api/transactions.go b/pkg/api/transactions.go
index f69fcc79..523c0346 100644
--- a/pkg/api/transactions.go
+++ b/pkg/api/transactions.go
@@ -260,13 +260,13 @@ func (a *TransactionsApi) TransactionModifyHandler(c *core.Context) (interface{}
 	removeTransactionTagIds := utils.Int64SliceMinus(transactionTagIds, tagIds)
 
 	newTransaction := &models.Transaction{
-		TransactionId:        transaction.TransactionId,
-		Uid:                  uid,
-		CategoryId:           transactionModifyReq.CategoryId,
-		TransactionTime:      utils.GetMinTransactionTimeFromUnixTime(transactionModifyReq.Time),
-		AccountId:            transactionModifyReq.SourceAccountId,
-		Amount:               transactionModifyReq.SourceAmount,
-		Comment:              transactionModifyReq.Comment,
+		TransactionId:   transaction.TransactionId,
+		Uid:             uid,
+		CategoryId:      transactionModifyReq.CategoryId,
+		TransactionTime: utils.GetMinTransactionTimeFromUnixTime(transactionModifyReq.Time),
+		AccountId:       transactionModifyReq.SourceAccountId,
+		Amount:          transactionModifyReq.SourceAmount,
+		Comment:         transactionModifyReq.Comment,
 	}
 
 	if transaction.Type == models.TRANSACTION_DB_TYPE_TRANSFER_OUT {
diff --git a/pkg/middlewares/authorization.go b/pkg/middlewares/authorization.go
index bc62cdf9..7503f9c9 100644
--- a/pkg/middlewares/authorization.go
+++ b/pkg/middlewares/authorization.go
@@ -38,7 +38,7 @@ func JWTAuthorization(c *core.Context) {
 }
 
 // JWTAuthorizationByQueryString verifies whether current request is valid by jwt token
-func JWTAuthorizationByQueryString(c *core.Context)  {
+func JWTAuthorizationByQueryString(c *core.Context) {
 	token, exists := c.GetQuery(tokenQueryStringParam)
 
 	if !exists {
diff --git a/pkg/services/transactions.go b/pkg/services/transactions.go
index 5f3b9163..3e33a2d1 100644
--- a/pkg/services/transactions.go
+++ b/pkg/services/transactions.go
@@ -88,7 +88,7 @@ func (s *TransactionService) GetTransactionsByMaxTime(uid int64, maxTime int64,
 
 	if keyword != "" {
 		condition = condition + " AND comment LIKE ?"
-		conditionParams = append(conditionParams, "%%" + keyword + "%%")
+		conditionParams = append(conditionParams, "%%"+keyword+"%%")
 	}
 
 	if maxTime > 0 {
@@ -174,7 +174,7 @@ func (s *TransactionService) GetTransactionsInMonthByPage(uid int64, year int, m
 
 	if keyword != "" {
 		condition = condition + " AND comment LIKE ?"
-		conditionParams = append(conditionParams, "%%" + keyword + "%%")
+		conditionParams = append(conditionParams, "%%"+keyword+"%%")
 	}
 
 	err = s.UserDataDB(uid).Where(condition, conditionParams...).Limit(count, count*(page-1)).OrderBy("transaction_time desc").Find(&transactions)
diff --git a/pkg/utils/api.go b/pkg/utils/api.go
index 86c53be5..e53b1ae4 100644
--- a/pkg/utils/api.go
+++ b/pkg/utils/api.go
@@ -22,7 +22,7 @@ func PrintJsonSuccessResult(c *core.Context, result interface{}) {
 // PrintDataSuccessResult writes success response in custom content type to current http context
 func PrintDataSuccessResult(c *core.Context, contentType string, fileName string, result []byte) {
 	if fileName != "" {
-		c.Header("Content-Disposition", "attachment;filename=" + fileName)
+		c.Header("Content-Disposition", "attachment;filename="+fileName)
 	}
 
 	c.Data(http.StatusOK, contentType, result)
diff --git a/pkg/utils/datetimes.go b/pkg/utils/datetimes.go
index e36e84e0..9f0af325 100644
--- a/pkg/utils/datetimes.go
+++ b/pkg/utils/datetimes.go
@@ -3,8 +3,8 @@ package utils
 import "time"
 
 const (
-	unixTimeFormat = "1136239445"
-	longDateTimeFormat = "2006-01-02 15:04:05"
+	unixTimeFormat                  = "1136239445"
+	longDateTimeFormat              = "2006-01-02 15:04:05"
 	longDateTimeWithoutSecondFormat = "2006-01-02 15:04"
 )