diff --git a/perl-xCAT/xCAT/Usage.pm b/perl-xCAT/xCAT/Usage.pm
index 258d0f973..b72107fd8 100644
--- a/perl-xCAT/xCAT/Usage.pm
+++ b/perl-xCAT/xCAT/Usage.pm
@@ -109,7 +109,8 @@ my %usage = (
        rmvm [-h|--help|-v|--version]",
     "lsslp" =>
 "Usage: lsslp [-h|--help|-v|--version]
-       lsslp [-V|--verbose][-b ip[,ip..]][-w][-r|-x|-z][-s BPA|MM|IVM|RSA|FSP|HMC]"
+       lsslp [-V|--verbose][-i ip[,ip..]][-w][-r|-x|-z][-s BPA|MM|IVM|RSA|FSP|HMC]
+             [-t tries][-m][-e cmd][-c [timeout[timeout,..]]]"
 );
 my $vers = xCAT::Utils->Version();
 my %version = (