diff --git a/src/wuttaweb/forms/schema.py b/src/wuttaweb/forms/schema.py
index e002c0b..20f957b 100644
--- a/src/wuttaweb/forms/schema.py
+++ b/src/wuttaweb/forms/schema.py
@@ -457,6 +457,7 @@ class ObjectRef(colander.SchemaType):
         :returns: Instance of
            :class:`~wuttaweb.forms.widgets.ObjectRefWidget`.
         """
+        factory = kwargs.pop("factory", widgets.ObjectRefWidget)
 
         if "values" not in kwargs:
             query = self.get_query()
@@ -469,7 +470,7 @@ class ObjectRef(colander.SchemaType):
         if "url" not in kwargs:
             kwargs["url"] = self.get_object_url
 
-        return widgets.ObjectRefWidget(self.request, **kwargs)
+        return factory(self.request, **kwargs)
 
     def get_object_url(self, obj):
         """