diff --git a/layout/interfaces.py b/layout/interfaces.py
index 325b939..1b5d8f1 100644
--- a/layout/interfaces.py
+++ b/layout/interfaces.py
@@ -27,6 +27,7 @@ from zope.interface import Interface
 from zope import schema
 
 from loops.interfaces import INodeSchema, IBaseNode, INode, IViewManager
+from loops.util import _
 
 
 class ILayoutView(INodeSchema):