diff --git a/tryton/gui/window/view_form/view/form_gtk/parser.py b/tryton/gui/window/view_form/view/form_gtk/parser.py
index bb0e095556..0db391d207 100644
--- a/tryton/gui/window/view_form/view/form_gtk/parser.py
+++ b/tryton/gui/window/view_form/view/form_gtk/parser.py
@@ -232,7 +232,6 @@ class ParserForm(ParserInterface):
         container.new(col=int(attrs.get('col', 4)))
 
         if not self.title:
-            attrs = common.node_attributes(root_node)
             self.title = attrs.get('string', 'Unknown')
 
         for node in root_node.childNodes: