diff --git a/efuns/fluffos/system.h b/efuns/fluffos/system.h
index d816ef7c..0cfa4f6b 100644
--- a/efuns/fluffos/system.h
+++ b/efuns/fluffos/system.h
@@ -113,7 +113,7 @@ string strftime( string fmt, int time );
  * valid_override(4) up (in master.c) to protect against efun::shutdown().
  *
  */
-void shutdown( int how );
+varargs void shutdown( int how );
 
 /**
  * set_reset - modify the time until reset on an object
diff --git a/efuns/fluffos/zh-cn/system.zh-cn.h b/efuns/fluffos/zh-cn/system.zh-cn.h
index fc865458..32d2724d 100644
--- a/efuns/fluffos/zh-cn/system.zh-cn.h
+++ b/efuns/fluffos/zh-cn/system.zh-cn.h
@@ -99,7 +99,7 @@ string strftime( string fmt, int time );
  * 确保在master.c中设置valid_override(4)以保护against efun::shutdown()。
  *
  */
-void shutdown( int how );
+varargs void shutdown( int how );
 
 /**
  * set_reset - 修改对象的重置时间