diff --git a/wagtail_modeltranslation/models.py b/wagtail_modeltranslation/models.py
index 2a0c034..9783e1d 100755
--- a/wagtail_modeltranslation/models.py
+++ b/wagtail_modeltranslation/models.py
@@ -1,9 +1,11 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import
+
 import logging
 
 import django
 import warnings
-from patch_wagtailadmin import WagtailTranslator
+from .patch_wagtailadmin import WagtailTranslator
 from wagtail.wagtailcore.models import Page
 from wagtail.wagtailsnippets.models import get_snippet_models
 
diff --git a/wagtail_modeltranslation/patch_wagtailadmin.py b/wagtail_modeltranslation/patch_wagtailadmin.py
index 088625f..33cccef 100644
--- a/wagtail_modeltranslation/patch_wagtailadmin.py
+++ b/wagtail_modeltranslation/patch_wagtailadmin.py
@@ -3,6 +3,8 @@ import copy
 import logging
 import operator
 
+from six import iteritems
+
 from django.conf import settings
 from django.core.exceptions import ValidationError
 from django.core.urlresolvers import reverse
@@ -89,7 +91,7 @@ class WagtailTranslator(object):
                 f.required = True
 
         # Do the same to the formsets
-        for related_name, formset in form.formsets.iteritems():
+        for related_name, formset in iteritems(form.formsets):
             if (formset.model in WagtailTranslator._required_fields and
                     WagtailTranslator._required_fields[formset.model]):
                 for fname, f in formset.form.base_fields.items():
@@ -170,7 +172,7 @@ class WagtailTranslator(object):
                 if fname == field_name:
                     return f.required
         else:
-            for related_name, formset in cls._base_model_form.formsets.iteritems():
+            for related_name, formset in iteritems(cls._base_model_form.formsets):
                 if formset.model == cls._current_model:
                     for fname, f in formset.form.base_fields.items():
                         if fname == field_name: