diff --git a/src/kit/shell/src/shellLinux.c b/src/kit/shell/src/shellLinux.c
index 284b7991ea4051cd7cb302666740fe1fc4c6e0d8..6c09d5c9d06c1182bdd45b04fec551d8ecf99e4d 100644
--- a/src/kit/shell/src/shellLinux.c
+++ b/src/kit/shell/src/shellLinux.c
@@ -46,7 +46,7 @@ static struct argp_option options[] = {
   {"thread",     'T', "THREADNUM",  0,                   "Number of threads when using multi-thread to import data."},
   {"database",   'd', "DATABASE",   0,                   "Database to use when connecting to the server."},
   {"timezone",   't', "TIMEZONE",   0,                   "Time zone of the shell, default is local."},
-  {"netrole",    'n', "NETROLE",    0,                   "Net role when testing, default is NULL, valid option: client | server."},
+  {"netrole",    'n', "NETROLE",    0,                   "Net role when network connectivity test, default is NULL, valid option: client | server."},
   {"endport",    'e', "ENDPORT",    0,                   "Net test end port, default is 6042."},
   {"pktlen",     'l', "PKTLEN",     0,                   "Packet length used for net test, default is 1000 bytes."},
   {0}};