diff --git a/perl-xCAT/xCAT/Usage.pm b/perl-xCAT/xCAT/Usage.pm
index fe9c5efbd..0f6028448 100644
--- a/perl-xCAT/xCAT/Usage.pm
+++ b/perl-xCAT/xCAT/Usage.pm
@@ -116,7 +116,7 @@ my %usage = (
        getmacs [-h|--help|-v|--version]
    PPC specific:
        getmacs <noderange> [-F filter] 
-       getmacs <noderange> [-f][-d] [arp] | [-D [-S server] [-G gateway] [-C client]]",
+       getmacs <noderange> [-f][-d] [--arp] | [-D [-S server] [-G gateway] [-C client]]",
     "mkvm" => 
 "Usage:
     Common:
diff --git a/xCAT-client/pods/man1/getmacs.1.pod b/xCAT-client/pods/man1/getmacs.1.pod
index 2425885df..ff3521e87 100644
--- a/xCAT-client/pods/man1/getmacs.1.pod
+++ b/xCAT-client/pods/man1/getmacs.1.pod
@@ -4,9 +4,13 @@ B<getmacs> - Collects node MAC address.
 
 =head1 SYNOPSIS
 
-I<getmacs [-h| --help]>
+=head2 Common:
 
-I<getmacs [-v| --version]>
+I<getmacs noderange [-d] [-V| --verbose]>
+
+I<getmacs [-h| --help | -v| --version]>
+
+=head2 PPC specific:
 
 I<getmacs noderange> [-F filter]