diff --git a/Elwig/Windows/BaseDataWindow.xaml.cs b/Elwig/Windows/BaseDataWindow.xaml.cs
index 264ecd9..ba7b144 100644
--- a/Elwig/Windows/BaseDataWindow.xaml.cs
+++ b/Elwig/Windows/BaseDataWindow.xaml.cs
@@ -212,7 +212,7 @@ namespace Elwig.Windows {
             p.Address = ClientAddressInput.Text;
             p.Plz = int.Parse(ClientPlzInput.Text);
             p.Ort = ClientOrtInput.Text;
-            p.Iban = ClientIbanInput.Text.Length > 0 ? ClientIbanInput.Text.Replace(" ", "") : null;
+            p.Iban = ClientIbanInput.Text.Length > 0 ? ClientIbanInput.Text : null;
             p.Bic = ClientBicInput.Text.Length > 0 ? ClientBicInput.Text : null;
             p.UstIdNr = ClientUstIdNrInput.Text.Length > 0 ? ClientUstIdNrInput.Text : null;
             p.LfbisNr = ClientLfbisNrInput.Text.Length > 0 ? ClientLfbisNrInput.Text : null;