diff --git a/internal/msg_transfer/logic/init.go b/internal/msg_transfer/logic/init.go
index dff95334c..a9c8778b8 100644
--- a/internal/msg_transfer/logic/init.go
+++ b/internal/msg_transfer/logic/init.go
@@ -27,6 +27,7 @@ var (
 
 func Init() {
 	cmdCh = make(chan Cmd2Value, 10000)
+	w = new(sync.Mutex)
 	persistentCH.Init()
 	historyCH.Init(cmdCh)
 	offlineHistoryCH.Init(cmdCh)