diff --git a/business/jxstore/cms/api_print.go b/business/jxstore/cms/api_print.go
index 8b7aeecc9..a4c3b8a8e 100644
--- a/business/jxstore/cms/api_print.go
+++ b/business/jxstore/cms/api_print.go
@@ -383,6 +383,8 @@ func DoPrintMsg(appID int, msgID, printNo, content string, orderNo string) (err
 
 	t, ok := event.PrintObject[printNo]
 	if ok {
+		t.Lock()
+		defer t.Unlock()
 		t.MsgMap[printNo] <- printMsg
 		printMsg.Status = event.PrintMsgAlreadyLoad
 	}