diff --git a/src/server/game/FriendMgr.go b/src/server/game/FriendMgr.go
index 8c21d804..87b9052f 100644
--- a/src/server/game/FriendMgr.go
+++ b/src/server/game/FriendMgr.go
@@ -90,7 +90,7 @@ func (f *FriendMgr) sendToPlayer(m *msg.Msg) (interface{}, error) {
 func (f *FriendMgr) sync(m *msg.Msg) (interface{}, error) {
 	data := f.getData().List[m.From]
 	f.getData().List[m.From] = make([]*msg.Msg, 0)
-	log.Debug("sync friendMgr msg to player %d success", m.From)
+	log.Debug("sync friendMgr msg to player %d success mailbox %v", m.From, data)
 	return data, nil
 }