diff --git a/perl-xCAT-2.0/xCAT/PPCcli.pm b/perl-xCAT-2.0/xCAT/PPCcli.pm
index 7697ee44a..77c8319c2 100644
--- a/perl-xCAT-2.0/xCAT/PPCcli.pm
+++ b/perl-xCAT-2.0/xCAT/PPCcli.pm
@@ -185,6 +185,7 @@ sub connect {
     #    Server hostname
     #    UserId
     #    Password
+    #    Redirected STDERR/STDOUT
     ##########################################
     if ( $success ) {
         return( $ssh,