diff --git a/sigi/settings/base.py b/sigi/settings/base.py
index 29321c8..c678b2f 100644
--- a/sigi/settings/base.py
+++ b/sigi/settings/base.py
@@ -30,9 +30,9 @@ MANAGERS = ADMINS
 
 SITE_ID = 1
 
-TEMPLATE_CONTEXT_PROCESSORS = DEFAULT_SETTINGS.TEMPLATE_CONTEXT_PROCESSORS + [
+TEMPLATE_CONTEXT_PROCESSORS = DEFAULT_SETTINGS.TEMPLATE_CONTEXT_PROCESSORS + (
     'django.core.context_processors.request',
-]
+)
 # List of callables that know how to import templates from various sources.
 TEMPLATE_LOADERS = ('django.template.loaders.filesystem.Loader',
                     'django.template.loaders.app_directories.Loader',