diff --git a/Plugins/YLErp.Plugins.GuoLian/DocumentGenerator/TradeConfirmationGenerator.cs b/Plugins/YLErp.Plugins.GuoLian/DocumentGenerator/TradeConfirmationGenerator.cs
index a91257e4..8c143c02 100644
--- a/Plugins/YLErp.Plugins.GuoLian/DocumentGenerator/TradeConfirmationGenerator.cs
+++ b/Plugins/YLErp.Plugins.GuoLian/DocumentGenerator/TradeConfirmationGenerator.cs
@@ -80,7 +80,7 @@ namespace YLErp.Plugins.GuoLian.DocumentGenerator
         /// <summary>
         /// 判断是否为债券ETF
         /// - .SH后缀且511开头 -> 债券ETF
-        /// - .SZ后缀且59开头 -> 债券ETF
+        /// - .SZ后缀且159开头 -> 债券ETF
         /// - 其他 -> 现券
         /// </summary>
         private bool IsBondEtf(string underlyingCode)
@@ -95,7 +95,7 @@ namespace YLErp.Plugins.GuoLian.DocumentGenerator
                 return true;
 
             // 深交所债券ETF：59开头.SZ后缀
-            if (underlyingCode.EndsWith(".SZ") && underlyingCode.StartsWith("59"))
+            if (underlyingCode.EndsWith(".SZ") && underlyingCode.StartsWith("159"))
                 return true;
 
             return false;