diff --git a/server/statserver/session/sessionmgr.go b/server/statserver/session/sessionmgr.go
index a8974e99..2d6dc199 100644
--- a/server/statserver/session/sessionmgr.go
+++ b/server/statserver/session/sessionmgr.go
@@ -5,13 +5,15 @@ import (
 	"sync"
 )
 
-type session struct {
+type userSession struct {
 	accountId string
+	sessionId string
 	lastUpdateTick int64
 }
 
 type sessionMgr struct {
 	idHash sync.Map
+	lock sync.Mutex
 }
 
 func (this *sessionMgr) UpdateSession(accountId string, sessionId string) {
@@ -20,11 +22,25 @@ func (this *sessionMgr) UpdateSession(accountId string, sessionId string) {
 		session.lastUpdateTick = q5.GetTickCount()
 		return
 	}
+	this.lock.Lock()
+	session = this.getSession(accountId)
+	if session != nil {
+		session.lastUpdateTick = q5.GetTickCount()
+		this.lock.Unlock()
+		return
+	}
+
+	session = new(userSession)
+	session.accountId = accountId
+	session.sessionId = sessionId
+	session.lastUpdateTick = q5.GetTickCount()
+	this.idHash.Store(accountId, session)
+	this.lock.Unlock()
 }
 
-func (this *sessionMgr) getSession(accountId string) *session {
+func (this *sessionMgr) getSession(accountId string) *userSession {
 	if p, ok := this.idHash.Load(accountId); ok {
-		return p.(*session)
+		return p.(*userSession)
 	} else {
 		return nil
 	}