diff --git a/README.cloud b/README.cloud
index 26a3966432..171f447be2 100644
--- a/README.cloud
+++ b/README.cloud
@@ -77,7 +77,7 @@ column of the above `nova` command.
         instance_type: m1.medium
         image: 
         keypair: fedora-admin-20130801
-        security_group: webserver
+        security_group: default  # NOTE: security_group MUST contain default.
         zone: nova
         tcp_ports: [22, 80, 443]