diff --git a/PyRIGS/settings.py b/PyRIGS/settings.py
index 1af028c5..77a26fc2 100644
--- a/PyRIGS/settings.py
+++ b/PyRIGS/settings.py
@@ -43,6 +43,7 @@ INSTALLED_APPS = (
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'django.contrib.sites',
     'RIGS',
 
     'debug_toolbar',