diff --git a/dal/settings.py b/dal/settings.py
index 8b467c2..2aa808d 100644
--- a/dal/settings.py
+++ b/dal/settings.py
@@ -34,7 +34,7 @@ BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
 DEBUG = os.environ.get('DEBUG', False)
 
-ALLOWED_HOSTS = os.environ.get('ALLOWED_HOSTS', 'localhost').split(",")
+ALLOWED_HOSTS = (os.environ.get('ALLOWED_HOSTS', 'localhost')).split(",")
 
 INSTALLED_APPS = [
     'django.contrib.admin',