diff --git a/AsbCloudInfrastructure/Background/WorkToDeleteOldReports.cs b/AsbCloudInfrastructure/Background/WorkToDeleteOldReports.cs
index 683a7ee6..fb49caab 100644
--- a/AsbCloudInfrastructure/Background/WorkToDeleteOldReports.cs
+++ b/AsbCloudInfrastructure/Background/WorkToDeleteOldReports.cs
@@ -28,7 +28,7 @@ namespace AsbCloudInfrastructure.Background
         protected override async Task Action(string id, IServiceProvider services, Action<string, double?> onProgressCallback, CancellationToken token)
         {
             var reportService = services.GetRequiredService<IReportService>();
-            await reportService.DeleteAllOldReportsAsync(new TimeSpan(30, 0, 0, 0), token);
+            await reportService.DeleteAllOldReportsAsync(TimeSpan.FromDays(30), token);
         }
     }
 }
diff --git a/AsbCloudInfrastructure/Services/ReportService.cs b/AsbCloudInfrastructure/Services/ReportService.cs
index 0b9da1a1..a4f659f8 100644
--- a/AsbCloudInfrastructure/Services/ReportService.cs
+++ b/AsbCloudInfrastructure/Services/ReportService.cs
@@ -192,17 +192,13 @@ namespace AsbCloudInfrastructure.Services
 
         public async Task<int> DeleteAllOldReportsAsync(TimeSpan lifetime, CancellationToken token)
         {
-            var lifeTimeStartDate = DateTime.UtcNow.Date.Add(-lifetime);
-            var fileIds = db.ReportProperties
+            var lifeTimeStartDate = DateTime.UtcNow.Date - lifetime;
+            var fileIds = await db.ReportProperties
                 .Where(r => r.File.UploadDate.Date < lifeTimeStartDate)
-                .Select(r => r.IdFile);
+                .Select(r => r.IdFile)
+                .ToArrayAsync(token);
 
-            if (fileIds.Any())
-            {
-                return await fileService.DeleteAsync(fileIds, token);
-            }
-            return 0;
+            return await fileService.DeleteAsync(fileIds, token);
         }
     }
-
 }