diff --git a/SecuritySystem/SecuritySystemBusinessLogic/BusinessLogics/ClientLogic.cs b/SecuritySystem/SecuritySystemBusinessLogic/BusinessLogics/ClientLogic.cs
index a322bf4..ada8fcc 100644
--- a/SecuritySystem/SecuritySystemBusinessLogic/BusinessLogics/ClientLogic.cs
+++ b/SecuritySystem/SecuritySystemBusinessLogic/BusinessLogics/ClientLogic.cs
@@ -97,6 +97,10 @@ namespace SecuritySystemBusinessLogic.BusinessLogics
             {
                 throw new ArgumentNullException("Нет пароля клиента", nameof(model.Password));
             }
+            if (string.IsNullOrEmpty(model.ClientFIO))
+            {
+                throw new ArgumentNullException("Нет фио клиента", nameof(model.ClientFIO));
+            }
             _logger.LogInformation("Client. Email:{Email}. Id: {Id}", model.Email, model.Id);
             var element = _clientStorage.GetElement(new ClientSearchModel
             {