diff --git a/categories/editor/templatetags/admin_tree_list_tags.py b/categories/editor/templatetags/admin_tree_list_tags.py
index 2af33d6..681df55 100644
--- a/categories/editor/templatetags/admin_tree_list_tags.py
+++ b/categories/editor/templatetags/admin_tree_list_tags.py
@@ -96,27 +96,18 @@ def items_for_tree_result(cl, result, form):
             value = result.serializable_value(attr)
             result_id = repr(force_text(value))[1:]
             first = False
-            if django.VERSION[1] < 4:  # versions 1.3 and smaller
-                yield mark_safe(
-                    '<%s%s>%s<a href="%s"%s>%s</a></%s>' %
-                    (table_tag, row_class, checkbox_value, url, (cl.is_popup and ' onclick="opener.dismissRelatedLookupPopup(window, %s); return false;"' % result_id or ''), conditional_escape(result_repr), table_tag))
-            elif django.VERSION[1] < 7:  # versions 1.4 to 1.7
-                yield mark_safe(
-                    '<%s%s><a href="%s"%s>%s</a></%s>' %
-                    (table_tag, row_class, url, (cl.is_popup and ' onclick="opener.dismissRelatedLookupPopup(window, %s); return false;"' % result_id or ''), conditional_escape(result_repr), table_tag))
-            else:  # versions 1.8 and greater
-                result_id = escapejs(value)
-                yield mark_safe(
+            result_id = escapejs(value)
+            yield mark_safe(
+                format_html(
+                    smart_text('<{}{}><a href="{}"{}>{}</a></{}>'),
+                    table_tag,
+                    row_class,
+                    url,
                     format_html(
-                        '<{}{}><a href="{}"{}>{}</a></{}>',
-                        table_tag,
-                        row_class,
-                        url,
-                        format_html(
-                            ' onclick="opener.dismissRelatedLookupPopup(window, '
-                            '&#39;{}&#39;); return false;"', result_id
-                        ) if cl.is_popup else '', result_repr, table_tag)
-                )
+                        ' onclick="opener.dismissRelatedLookupPopup(window, '
+                        '&#39;{}&#39;); return false;"', result_id
+                    ) if cl.is_popup else '', result_repr, table_tag)
+            )
 
         else:
             # By default the fields come from ModelAdmin.list_editable, but if we pull
@@ -127,9 +118,9 @@ def items_for_tree_result(cl, result, form):
                 result_repr = mark_safe(force_text(bf.errors) + force_text(bf))
             else:
                 result_repr = conditional_escape(result_repr)
-            yield mark_safe('<td%s>%s</td>' % (row_class, result_repr))
+            yield mark_safe(smart_text('<td%s>%s</td>' % (row_class, result_repr)))
     if form and not form[cl.model._meta.pk.name].is_hidden:
-        yield mark_safe('<td>%s</td>' % force_text(form[cl.model._meta.pk.name]))
+        yield mark_safe(smart_text('<td>%s</td>' % force_text(form[cl.model._meta.pk.name])))
 
 
 class TreeList(list):
diff --git a/categories/tests/test_admin.py b/categories/tests/test_admin.py
index 6806ec4..897a9fe 100644
--- a/categories/tests/test_admin.py
+++ b/categories/tests/test_admin.py
@@ -1,6 +1,9 @@
+# -*- coding: utf-8 -*-
+
 from django.contrib.auth.models import User
 from django.core.urlresolvers import reverse
 from django.test import Client, TestCase
+from django.utils.encoding import smart_text
 
 from categories.models import Category
 
@@ -16,7 +19,7 @@ class TestCategoryAdmin(TestCase):
         url = reverse('admin:categories_category_add')
         data = {
             'parent': '',
-            'name': "Parent",
+            'name': smart_text('Parent Catégory'),
             'thumbnail': '',
             'filename': '',
             'active': 'on',
@@ -34,7 +37,7 @@ class TestCategoryAdmin(TestCase):
         self.assertEqual(1, Category.objects.count())
 
         # update parent
-        data.update({'name': 'Parent (Changed)'})
+        data.update({'name': smart_text('Parent Catégory (Changed)')})
         resp = self.client.post(reverse('admin:categories_category_change', args=(1,)), data=data)
         self.assertEqual(resp.status_code, 302)
         self.assertEqual(1, Category.objects.count())
@@ -42,8 +45,8 @@ class TestCategoryAdmin(TestCase):
         # add a child
         data.update({
             'parent': '1',
-            'name': 'Child',
-            'slug': 'child',
+            'name': smart_text('Child Catégory'),
+            'slug': smart_text('child-category'),
         })
         resp = self.client.post(url, data=data)
         self.assertEqual(resp.status_code, 302)
@@ -54,3 +57,8 @@ class TestCategoryAdmin(TestCase):
         resp = self.client.post(reverse('admin:categories_category_change', args=(2,)), data=data)
         self.assertEqual(resp.status_code, 302)
         self.assertEqual(2, Category.objects.count())
+
+        # test the admin list view
+        url = reverse('admin:categories_category_changelist')
+        resp = self.client.get(url)
+        self.assertEqual(resp.status_code, 200)