diff --git a/Apewer/CronAttribute.cs b/Apewer/CronAttribute.cs
index d005106..fcd9581 100644
--- a/Apewer/CronAttribute.cs
+++ b/Apewer/CronAttribute.cs
@@ -296,7 +296,7 @@ namespace Apewer
 
         /// <summary>打断 Cron 循环并等待 Cron 执行结束。等待指定的时间后打断正在执行的 Cron。</summary>
         /// <param name="timeout">强制打断前的等待毫秒数，指定为负数时将无限等待。</param>
-        public static void Break(int timeout = 20000)
+        public static void Break(int timeout)
         {
             _break = true;