diff --git a/Borepin/Borepin/PageModel/AddServerProcess/AuthPlainPageModel.cs b/Borepin/Borepin/PageModel/AddServerProcess/AuthPlainPageModel.cs
index edb5d94..4a323b9 100644
--- a/Borepin/Borepin/PageModel/AddServerProcess/AuthPlainPageModel.cs
+++ b/Borepin/Borepin/PageModel/AddServerProcess/AuthPlainPageModel.cs
@@ -79,6 +79,7 @@ namespace Borepin.PageModel.AddServerProcess
         public async Task AuthenticateCommandExecute()
         {
             IsBusy = true;
+            Username = Username.Trim();
 
             _ConnectionData = new ConnectionData()
             {