diff --git a/perl-xCAT/xCAT/PPCcli.pm b/perl-xCAT/xCAT/PPCcli.pm
index 69bb6e00f..abafaaa4f 100644
--- a/perl-xCAT/xCAT/PPCcli.pm
+++ b/perl-xCAT/xCAT/PPCcli.pm
@@ -55,6 +55,7 @@ my %powercmd = (
       sms   =>"chsysstate -r %s -m %s -o on --id %s -f %s -b sms",
       reset =>"chsysstate -r %s -m %s -o shutdown --id %s --immed --restart",
       off   =>"chsysstate -r %s -m %s -o shutdown --id %s --immed",
+      softoff   =>"chsysstate -r %s -m %s -o shutdown --id %s",
       boot  =>"undetermined" },
   sys  => { 
       reset =>"chsysstate -r %s -m %s -o off --immed --restart",
diff --git a/perl-xCAT/xCAT/PPCpower.pm b/perl-xCAT/xCAT/PPCpower.pm
index a973f618b..2c180f1d4 100644
--- a/perl-xCAT/xCAT/PPCpower.pm
+++ b/perl-xCAT/xCAT/PPCpower.pm
@@ -16,7 +16,7 @@ sub parse_args {
     my $command = $request->{command};
     my $args    = $request->{arg};
     my %opt     = ();
-    my @rpower  = qw(on onstandby off stat state reset boot of sms);
+    my @rpower  = qw(on onstandby off softoff stat state reset boot of sms);
 
     #############################################
     # Responds with usage statement