diff --git a/db/db.go b/db/db.go
index dcc257c..2226a32 100644
--- a/db/db.go
+++ b/db/db.go
@@ -42,7 +42,7 @@ func (that *HoTimeDB) GetType() string {
 
 // Action 事务，如果action返回true则执行成功；false则回滚
 func (that *HoTimeDB) Action(action func(db HoTimeDB) bool) bool {
-	db := HoTimeDB{DB: that.DB, HoTimeCache: that.HoTimeCache}
+	db := HoTimeDB{DB: that.DB, HoTimeCache: that.HoTimeCache, Prefix: that.Prefix}
 	tx, err := db.Begin()
 	if err != nil {
 		that.LastErr.SetError(err)