diff --git a/tests/settings.py b/tests/settings.py
index <HASH>..<HASH> 100644
--- a/tests/settings.py
+++ b/tests/settings.py
@@ -8,5 +8,5 @@ DATABASES = {
 SECRET_KEY = 'tests'
 
 INSTALLED_APPS = (
-    'tests'
+    'tests',
 )
Fix 'INSTALLED_APPS setting must be a list or a tuple' error