diff --git a/django/forms/widgets.py b/django/forms/widgets.py
index 5b50f37b67..8c1e20b179 100644
--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -552,7 +552,9 @@ class NullBooleanSelect(Select):
     A Select Widget intended to be used with NullBooleanField.
     """
     def __init__(self, attrs=None):
-        choices = ((u'1', ugettext('Unknown')), (u'2', ugettext('Yes')), (u'3', ugettext('No')))
+        choices = ((u'1', ugettext_lazy('Unknown')),
+                   (u'2', ugettext_lazy('Yes')),
+                   (u'3', ugettext_lazy('No')))
         super(NullBooleanSelect, self).__init__(attrs, choices)
 
     def render(self, name, value, attrs=None, choices=()):
diff --git a/tests/regressiontests/forms/tests/widgets.py b/tests/regressiontests/forms/tests/widgets.py
index 2424bea903..b567ea370e 100644
--- a/tests/regressiontests/forms/tests/widgets.py
+++ b/tests/regressiontests/forms/tests/widgets.py
@@ -984,6 +984,10 @@ beatle J R Ringo False""")
         self.assertEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51)), u'<input type="hidden" name="date_0" value="2007-09-17" /><input type="hidden" name="date_1" value="12:51:00" />')
 
 
+class NullBooleanSelectLazyForm(Form):
+    """Form to test for lazy evaluation. Refs #17190"""
+    bool = BooleanField(widget=NullBooleanSelect())
+
 class FormsI18NWidgetsTestCase(TestCase):
     def setUp(self):
         super(FormsI18NWidgetsTestCase, self).setUp()
@@ -1025,6 +1029,15 @@ class FormsI18NWidgetsTestCase(TestCase):
         w.is_localized = True
         self.assertEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51)), u'<input type="hidden" name="date_0" value="17.09.2007" /><input type="hidden" name="date_1" value="12:51:00" />')
 
+    def test_nullbooleanselect(self):
+        """
+        Ensure that the NullBooleanSelect widget's options are lazily
+        localized.
+        Refs #17190
+        """
+        f = NullBooleanSelectLazyForm()
+        self.assertEqual(f.fields['bool'].widget.render('id_bool', True), u'<select name="id_bool">\n<option value="1">Unbekannt</option>\n<option value="2" selected="selected">Ja</option>\n<option value="3">Nein</option>\n</select>')
+
 
 class SelectAndTextWidget(MultiWidget):
     """