gistfile1.txt

diff --git a/django/forms/forms.py b/django/forms/forms.py
index bcc0d6d..46192ad 100644
--- a/django/forms/forms.py
+++ b/django/forms/forms.py
@@ -15,7 +15,7 @@ from django.forms.widgets import Media, MediaDefiningClass, TextInput, Textarea
 from django.utils.html import conditional_escape, format_html
 from django.utils.encoding import smart_text, force_text, python_2_unicode_compatible
 from django.utils.safestring import mark_safe
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext as _, ugettext_lazy
 from django.utils import six


@@ -119,7 +119,7 @@ class BaseForm(object):
         self.initial = initial or {}
         self.error_class = error_class
         # Translators: This is the default suffix added to form field labels
-        self.label_suffix = label_suffix if label_suffix is not None else _(':')
+        self.label_suffix = label_suffix if label_suffix is not None else ugettext_lazy(':')
         self.empty_permitted = empty_permitted
         self._errors = None  # Stores the errors after clean() has been called.
         self._changed_data = None