diff --git a/lb/nightly/rpc/__init__.py b/lb/nightly/rpc/__init__.py
index 81816818db654f6db63ddebb4108b8250b8da5c0..9c42cfaa7d8eaef7c72d652ebda1effb126b5857 100644
--- a/lb/nightly/rpc/__init__.py
+++ b/lb/nightly/rpc/__init__.py
@@ -29,8 +29,8 @@ try:
     backend_url = conf.get("mysql", {}).get("url")
 except AttributeError:
     logging.warning("Broker and Backend not specified, the results will not be kept")
-    broker_url = "amqp://guest:guest@rabbitmq:5672"
-    backend_url = "rpc"
+    broker_url = os.environ.get("BROKER_URL", "amqp://guest:guest@rabbitmq:5672")
+    backend_url = os.environ.get("BACKEND_URL", "rpc")
 
 app = Celery(
     __name__,