diff --git a/tryton/tryton/gui/window/view_form/view/list.py b/tryton/tryton/gui/window/view_form/view/list.py
index f571deafcd..8219dda5b5 100644
--- a/tryton/tryton/gui/window/view_form/view/list.py
+++ b/tryton/tryton/gui/window/view_form/view/list.py
@@ -785,6 +785,8 @@ class ViewTree(View):
                 continue
             reader = csv.reader(StringIO(text), delimiter='\t')
             break
+        else:
+            return
         col = self.treeview.get_cursor()[1]
         columns = [c for c in self.treeview.get_columns()
             if c.get_visible() and c.name]