diff --git a/Dockerfile.fromdeb b/Dockerfile.fromdeb
index 9c3e245..ec348cb 100644
--- a/Dockerfile.fromdeb
+++ b/Dockerfile.fromdeb
@@ -66,7 +66,7 @@
 # authentication
 ENV OSMNBI_AUTHENTICATION_BACKEND               internal
 #ENV OSMNBI_AUTHENTICATION_BACKEND               keystone
-#ENV OSMNBI_AUTHENTICATION_AUTH_URL              keystone
+#ENV OSMNBI_AUTHENTICATION_AUTH_URL              http://keystone:5000/v3
 #ENV OSMNBI_AUTHENTICATION_AUTH_PORT             5000
 #ENV OSMNBI_AUTHENTICATION_USER_DOMAIN_NAME      default
 #ENV OSMNBI_AUTHENTICATION_PROJECT_DOMAIN_NAME   default