diff --git a/runtests.py b/runtests.py
index bfe6ad99a..fa0e5d555 100755
--- a/runtests.py
+++ b/runtests.py
@@ -12,6 +12,7 @@
     settings.configure(
         INSTALLED_APPS=(
             'django.contrib.contenttypes',
+            'django.contrib.auth',
             'simple_history',
             'simple_history.tests'
         ),