diff --git a/nova/virt/libvirt/volume/net.py b/nova/virt/libvirt/volume/net.py
index a4baf3ed1f3e..fe27d8f7a858 100644
--- a/nova/virt/libvirt/volume/net.py
+++ b/nova/virt/libvirt/volume/net.py
@@ -21,7 +21,7 @@ volume_opts = [
     cfg.StrOpt('rbd_user',
                help='The RADOS client name for accessing rbd volumes'),
     cfg.StrOpt('rbd_secret_uuid',
-               help='The libvirt UUID of the secret for the rbd_user'
+               help='The libvirt UUID of the secret for the rbd_user '
                     'volumes'),
     ]