diff --git a/.travis.yml b/.travis.yml
index 9a87327fd..aa3f468b9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,3 +8,4 @@ install:
 script:
   - coverage run ./manage.py test tests && coverage report -m
   - pep8 --max-line-length=150 --exclude="urls.py," --statistics openslides
+  - pep8 --max-line-length=150 --statistics tests
diff --git a/tests/agenda/tests.py b/tests/agenda/tests.py
index 5472fc6a8..d1a76cf6f 100644
--- a/tests/agenda/tests.py
+++ b/tests/agenda/tests.py
@@ -95,7 +95,6 @@ class ItemTest(TestCase):
         self.assertEqual(self.item5.print_related_type(), 'Releateditem')
 
 
-
 class ViewTest(TestCase):
     def setUp(self):
         self.item1 = Item.objects.create(title='item1')
diff --git a/tests/motion/test_models.py b/tests/motion/test_models.py
index 86498912f..8e7ddcd4d 100644
--- a/tests/motion/test_models.py
+++ b/tests/motion/test_models.py
@@ -75,7 +75,7 @@ class ModelTest(TestCase):
         self.assertEqual(motion.title, 'v2')
 
         motion.version = None
-        motion.version = None # Test to set a version to None, which is already None
+        motion.version = None  # Test to set a version to None, which is already None
         self.assertEqual(motion.title, 'v3')
 
         with self.assertRaises(ValueError):
diff --git a/tests/test_init.py b/tests/test_init.py
index 411860d79..aa665c62f 100644
--- a/tests/test_init.py
+++ b/tests/test_init.py
@@ -7,9 +7,9 @@
     :license: GNU GPL, see LICENSE for more details.
 """
 
-from django.test import TestCase
-
 from openslides import get_version, get_git_commit_id
+from openslides.utils.test import TestCase
+
 
 class InitTest(TestCase):
     def test_get_version(self):