diff --git a/business/jxstore/event/event.go b/business/jxstore/event/event.go
index 590232443..eeb9f932e 100644
--- a/business/jxstore/event/event.go
+++ b/business/jxstore/event/event.go
@@ -692,6 +692,7 @@ func SendSysMessage(ctx *jxcontext.Context, imMessageRecord *model.ImMessageReco
 		userID  = imMessageRecord.ToUserID
 		groupID = imMessageRecord.GroupID
 	)
+	imMessageRecord = &model.ImMessageRecord{}
 	if groupID != model.SysGroupID {
 		return fmt.Errorf("只能给系统组发消息！")
 	}