diff --git a/senlinclient/v1/receiver.py b/senlinclient/v1/receiver.py
index 22674cfb..8c97b667 100644
--- a/senlinclient/v1/receiver.py
+++ b/senlinclient/v1/receiver.py
@@ -157,7 +157,8 @@ class CreateReceiver(command.ShowOne):
             '--type',
             metavar='<type>',
             default='webhook',
-            help=_('Type of the receiver to create')
+            help=_('Type of the receiver to create. Receiver type can be '
+                   '"webhook" or "message". Default to "webhook".')
         )
         parser.add_argument(
             '--params',
diff --git a/senlinclient/v1/shell.py b/senlinclient/v1/shell.py
index 43628f93..86b3535e 100644
--- a/senlinclient/v1/shell.py
+++ b/senlinclient/v1/shell.py
@@ -1359,7 +1359,8 @@ def do_receiver_show(service, args):
 
 
 @utils.arg('-t', '--type', metavar='<TYPE>', default='webhook',
-           help=_('Type of the receiver to create.'))
+           help=_('Type of the receiver to create. Receiver type can be '
+                  '"webhook" or "message". Default to "webhook".'))
 @utils.arg('-c', '--cluster', metavar='<CLUSTER>',
            help=_('Targeted cluster for this receiver. Required if receiver '
                   'type is webhook.'))