diff --git a/perl-xCAT/xCAT/Usage.pm b/perl-xCAT/xCAT/Usage.pm
index cd2859145..dd895fa9d 100644
--- a/perl-xCAT/xCAT/Usage.pm
+++ b/perl-xCAT/xCAT/Usage.pm
@@ -161,8 +161,8 @@ my %usage = (
        rmvm [-h|--help|-v|--version]",
     "lsslp" =>
 "Usage: lsslp [-h|--help|-v|--version]
-       lsslp [-V|--verbose][-i ip[,ip..]][-w][-r|-x|-z][-n][-s BPA|MM|IVM|RSA|FSP|HMC]
-             [-t tries][-m][-e cmd][-c [timeout[timeout,..]]][--vpdtable]
+       lsslp [-V|--verbose][-i ip[,ip..]][-w][-r|-x|-z][-n][-s BPA|MM|IVM|RSA|FSP|HMC][-C counts][-T timeout]
+             [-t tries][-m][-e cmd][-c [timeinterval[interval,..]]][--vpdtable]
              [-M vpd|switchport][--makedhcp][--updatehost][--resetnet]",
   "rflash" =>
 "Usage: rflash [ -h|--help|-v|--version]