diff --git a/obj.go b/obj.go
index 50da445..78f2066 100644
--- a/obj.go
+++ b/obj.go
@@ -7,9 +7,9 @@ import (
 )
 
 var (
-	cacheObjCastle sync.Map
-	cacheObjGuild  sync.Map
-	cacheObjUser   sync.Map
+	cacheObjCastle *sync.Map
+	cacheObjGuild  *sync.Map
+	cacheObjUser   *sync.Map
 )
 
 func getObjTypeId(objId int64) (int64, error) {
@@ -158,7 +158,7 @@ func addObjCastle(logo string, name string) (int64, error) {
 }
 
 func getObjCastleID(s string) int64 {
-	v, _ = cacheObjCastle.Load(s)
+	v, _ := cacheObjCastle.Load(s)
 	c := v.(ChatWarsCastle)
 	return c.ObjID64
 }
@@ -170,7 +170,7 @@ func loadObjCastle() error {
 		name string
 	)
 
-	cacheObjCastle = new(*sync.Map)
+	cacheObjCastle = new(sync.Map)
 
 	castles, err := db.Query(`SELECT oc.obj_id, oc.logo, oc.name FROM obj_castle oc;`)
 	if err != nil {
@@ -266,7 +266,7 @@ func loadObjGuild() error {
 		name string
 	)
 
-	cacheObjGuild = new(*sync.Map)
+	cacheObjGuild = new(sync.Map)
 
 	guilds, err := db.Query(`SELECT og.obj_id, og.tag, og.name FROM obj_guild og;`)
 	if err != nil {
@@ -359,7 +359,7 @@ func loadObjUser() error {
 		name string
 	)
 
-	cacheObjUser = new(*sync.Map)
+	cacheObjUser = new(sync.Map)
 
 	users, err := db.Query(`SELECT ou.obj_id, ou.name FROM obj_user ou;`)
 	if err != nil {