diff --git a/AsbCloudInfrastructure/Services/FileService.cs b/AsbCloudInfrastructure/Services/FileService.cs
index a036908b..b5103589 100644
--- a/AsbCloudInfrastructure/Services/FileService.cs
+++ b/AsbCloudInfrastructure/Services/FileService.cs
@@ -106,10 +106,8 @@ namespace AsbCloudInfrastructure.Services
             foreach (var item in entities)
             {
                 var filePropertiesDto = item.Adapt<FileInfoDto>();
-                filePropertiesDto.AuthorName = item.Author.Name;
-                filePropertiesDto.CompanyId = item.Author.IdCompany != null 
-                    ? item.Author.Company.Id 
-                    : 0;
+                filePropertiesDto.AuthorName = item.Author?.Name;
+                filePropertiesDto.CompanyId = item.Author?.IdCompany ?? 0;
                 result.Items.Add(filePropertiesDto);
             }