diff --git a/docs/conf.py b/docs/conf.py
index 72c23e8..69ee37e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -24,6 +24,7 @@ os.environ['GVAWEB_BROKER_URL'] = 'amqp://'
 os.environ['GVAWEB_NGINX_SITES_AVAILABLE'] = '/etc/nginx/sites-available'
 os.environ['GVAWEB_NGINX_SITES_ENABLED'] = '/etc/nginx/sites-enabled'
 os.environ['GVAWEB_PHPFPM_POOL'] = '/etc/php5/fpm/pool.d'
+os.environ["GVAWEB_RESULTS_REDIS_URL"] = "redis://"
 os.environ['GVAWEB_WWWUSER_MOUNT'] = '/srv/wwwfiles'
 # -- General configuration ------------------------------------------------