diff --git a/confluent_client/bin/nodepower b/confluent_client/bin/nodepower
index 1caccdac..b21314b3 100755
--- a/confluent_client/bin/nodepower
+++ b/confluent_client/bin/nodepower
@@ -32,7 +32,7 @@ if path.startswith('/opt'):
 import confluent.client as client
 
 argparser = optparse.OptionParser(
-    usage="Usage: %prog [options] noderange "
+    usage="Usage: %prog [options] <noderange> "
           "([status|on|off|shutdown|boot|reset])")
 argparser.add_option('-p', '--showprevious', dest='previous',
                      action='store_true', default=False,
@@ -77,4 +77,4 @@ if options.previous:
     # add dictionary to session
     session.add_precede_dict(prev)
 
-sys.exit(session.simple_noderange_command(noderange, '/power/state', setstate, promptover=options.maxnodes))
\ No newline at end of file
+sys.exit(session.simple_noderange_command(noderange, '/power/state', setstate, promptover=options.maxnodes))