diff --git a/doc/cetus-rw-admin.md b/doc/cetus-rw-admin.md
index 2ffecec..72e7e52 100644
--- a/doc/cetus-rw-admin.md
+++ b/doc/cetus-rw-admin.md
@@ -21,7 +21,7 @@
 | delete allow\_ip/deny\_ip '\<user\>@\<address\>'                                         | delete address from white list of module                   |
 | set reduce\_conns (true\|false)                                                      | reduce idle connections if set to true                     |
 | set maintain (true\|false)                                                          | Accelerate to close the connection                |
-| refresh conns                                                                      | refresh all server connections                             |
+| refresh\_conns                                                                      | refresh all server connections                             |
 | show maintain status                                                               | show maintain status                                       |
 | show variables [like '%pattern%']                                                  |                                                            |
 | select version                                                                     | cetus version                                              |
diff --git a/doc/cetus-shard-admin.md b/doc/cetus-shard-admin.md
index da74ee3..d8783ee 100644
--- a/doc/cetus-shard-admin.md
+++ b/doc/cetus-shard-admin.md
@@ -22,8 +22,8 @@
 | delete allow\_ip/deny\_ip '\<user\>@\<address\>'                                         | delete address from white list of module                   |
 | set reduce\_conns (true\|false)                                                      | reduce idle connections if set to true                     |
 | set maintain (true\|false)                                                          | Accelerate to close the connection                |
-| set charset_check (true\|false)                                                     | check the client charset is equal to the default charset   |
-| refresh conns                                                                      | refresh all server connections                             |
+| set charset\_check (true\|false)                                                     | check the client charset is equal to the default charset   |
+| refresh\_conns                                                                      | refresh all server connections                             |
 | show maintain status                                                               | show maintain status                                       |
 | show variables [like '%pattern%']                                                  |                                                            |
 | select version                                                                     | cetus version                                              |
diff --git a/plugins/admin/admin-commands.c b/plugins/admin/admin-commands.c
index e6f29d6..d2412db 100644
--- a/plugins/admin/admin-commands.c
+++ b/plugins/admin/admin-commands.c
@@ -2074,7 +2074,7 @@ static struct sql_help_entry_t {
     {"insert into backends values ('ip:port', '[ro|rw]', 'state')", "add mysql instance to backends list", RW_HELP},
     {"insert into backends values ('ip:port@group', '[ro|rw]', 'state')", "add mysql instance to backends list", SHARD_HELP},
     {"kill query tid", "kill session when the thread id is equal to tid. e.g. kill query 1; ", ALL_HELP},
-    {"refresh conns", "refresh all server connections. e.g. refresh conns; ", ALL_HELP},
+    {"refresh_conns", "refresh all server connections. e.g. refresh_conns; ", ALL_HELP},
     {"remove backend where [backend_ndx=index|address='ip:port']", "e.g. remove backend where address='3.1.2.1:6666'; ", ALL_HELP},
     {"remove backend backend_ndx", "e.g. remove backend 1; ", ALL_HELP},
     {"save settings", "save the current running configuration to files. e.g. save settings; ", ALL_HELP},