diff -up system-config-printer-1.4.1/newprinter.py.cursor-handling system-config-printer-1.4.1/newprinter.py
--- system-config-printer-1.4.1/newprinter.py.cursor-handling	2017-11-02 19:52:53.493150352 +0100
+++ system-config-printer-1.4.1/newprinter.py	2017-11-02 19:54:03.912595627 +0100
@@ -1627,7 +1627,8 @@ class NewPrinterGUI(GtkGUI):
                 model, iter = treeview.get_selection ().get_selected ()
                 if not iter:
                     path, column = treeview.get_cursor()
-                    iter = model.get_iter (path)
+                    if path:
+                        iter = model.get_iter (path)
                     #driver = model.get_value (iter, 1)
                 accepted = (iter != None)
 
diff -up system-config-printer-1.4.1/system-config-printer.py.cursor-handling system-config-printer-1.4.1/system-config-printer.py