diff --git a/server/mailserver/player/playermgr.go b/server/mailserver/player/playermgr.go
index 0824d1ee..d9aa9654 100644
--- a/server/mailserver/player/playermgr.go
+++ b/server/mailserver/player/playermgr.go
@@ -1,14 +1,14 @@
 package player
 
 import (
+	"sync"
 )
 
 type playerMgr struct {
-	accountIdHash map[string]*player
+	accountIdHash sync.Map
 }
 
 func (this *playerMgr) Init() {
-	this.accountIdHash = make(map[string]*player)
 }
 
 func (this *playerMgr) UnInit() {