diff --git a/trytond/ir/ui/view.py b/trytond/ir/ui/view.py
index 72a98cf0dd..79ce5eec1e 100644
--- a/trytond/ir/ui/view.py
+++ b/trytond/ir/ui/view.py
@@ -11,7 +11,7 @@ except ImportError:
 from lxml import etree
 from trytond.model import ModelView, ModelSQL, fields
 from trytond import backend
-from trytond.pyson import CONTEXT, Eval, Bool, PYSONDecoder
+from trytond.pyson import Eval, Bool, PYSONDecoder
 from trytond.tools import file_open
 from trytond.transaction import Transaction
 from trytond.wizard import Wizard, StateView, Button