diff --git a/csharp/App/SaliMax/src/Program.cs b/csharp/App/SaliMax/src/Program.cs
index e9a993bf3..e855fc0d7 100644
--- a/csharp/App/SaliMax/src/Program.cs
+++ b/csharp/App/SaliMax/src/Program.cs
@@ -310,7 +310,7 @@ internal static class Program
         sc.ResetAlarmsAndWarnings  = true; 
     }
 
-    private static async Task<Boolean> UploadCsv(StatusRecord status, DateTime timeStamp)
+    private static async Task<Boolean> UploadCsv(StatusRecord status, UnixTime timeStamp)
     {
         var s3Config = status.Config.S3;
         var csv      = status.ToCsv().LogInfo();