diff --git a/plugins/lib/xtintin/cmds.tin b/plugins/lib/xtintin/cmds.tin
index 22795b15..335f07e8 100644
--- a/plugins/lib/xtintin/cmds.tin
+++ b/plugins/lib/xtintin/cmds.tin
@@ -598,7 +598,7 @@ VAR {用 VAR 关键字定义的 PaoTin++ 变量清单，包含其中文含义} g
         #return;
     };
 
-    #line oneshot #alias bot.DoBusyDo.$bot {#0};
+    #line sub var #line oneshot #alias bot.DoBusyDo.$bot {#unvar bot.DoBusyDo.${bot}.lastRun};
 
     okLog 机器 $bot 将会在 busy 结束后停止。;
 };