diff --git a/YLErpDAL/Modules/SwapModule/SwapDealService.cs b/YLErpDAL/Modules/SwapModule/SwapDealService.cs
index aa83751c..5539f5e4 100644
--- a/YLErpDAL/Modules/SwapModule/SwapDealService.cs
+++ b/YLErpDAL/Modules/SwapModule/SwapDealService.cs
@@ -394,7 +394,7 @@ namespace YLErp.Modules.SwapModule
                 }
 
                 // 获取利率
-                decimal rate = GetFixedRate(position, startDate);
+                decimal rate = GetFixedRate(position, unwindDate);
                 decimal floatRate = GetFloatRate(position, preEodPosition, td.StartDate.Value, endDate, interestPeriod, swap, positionClone);
 
                 // 根据场景计算利息