diff --git a/FrontendWebApi/ApiControllers/HistoryController.cs b/FrontendWebApi/ApiControllers/HistoryController.cs
index a1e5e36..289a63c 100644
--- a/FrontendWebApi/ApiControllers/HistoryController.cs
+++ b/FrontendWebApi/ApiControllers/HistoryController.cs
@@ -1161,7 +1161,7 @@ namespace FrontendWebApi.ApiControllers
                                 where replace(convert(varchar, [timestamp], 111), '/', '-') >= @startTime 
                                     and replace(convert(varchar, [timestamp], 111), '/', '-') <= @endTime order by timestamp";
                     apiResult.Data.AddRange(
-                        await backgroundServiceMsSqlRepository.GetAllAsync<HistoryRawData>(sql, new { startTime = input.Start_timstamp, endTime = input.End_timstamp })
+                        await backgroundServiceMsSqlRepository.GetAllAsync<HistoryRawData>(sql, new { startTime = input.Start_timestamp, endTime = input.End_timestamp })
                     );
                     //foreach (var tn in tableName)
                     //{