diff --git a/docs/reference/gio/gio.rst b/docs/reference/gio/gio.rst
index d3ffa3ede..23bed8273 100644
--- a/docs/reference/gio/gio.rst
+++ b/docs/reference/gio/gio.rst
@@ -58,6 +58,12 @@ Plain filenames which contain a colon will be interpreted as URIs with an
 unknown protocol. To avoid this, prefix them with a path such as ``./``, or with
 the ``file:`` protocol.
 
+Volumes, drives and mounts are limited to the ones which are considered
+interesting to the user, such as removable drives. System mounts will not be
+shown, meaning the output from ``gio mount`` is not equivalent to the output
+from tools like ``fdisk``, and ``gio monitor --mounts`` will only list events
+relevant to selected mounts.
+
 COMMANDS
 --------
 
diff --git a/gio/gio-tool-mount.c b/gio/gio-tool-mount.c
index 5a35c1b36..6838775e4 100644
--- a/gio/gio-tool-mount.c
+++ b/gio/gio-tool-mount.c
@@ -71,8 +71,8 @@ static const GOptionEntry entries[] =
   { "force", 'f', 0, G_OPTION_ARG_NONE, &force, N_("Ignore outstanding file operations when unmounting or ejecting"), NULL },
   { "anonymous", 'a', 0, G_OPTION_ARG_NONE, &anonymous, N_("Use an anonymous user when authenticating"), NULL },
   /* Translator: List here is a verb as in 'List all mounts' */
-  { "list", 'l', 0, G_OPTION_ARG_NONE, &mount_list, N_("List"), NULL},
-  { "monitor", 'o', 0, G_OPTION_ARG_NONE, &mount_monitor, N_("Monitor events"), NULL},
+  { "list", 'l', 0, G_OPTION_ARG_NONE, &mount_list, N_("List user-interesting volumes, drives and mounts"), NULL},
+  { "monitor", 'o', 0, G_OPTION_ARG_NONE, &mount_monitor, N_("Monitor user-interesting volume, drive and mount events"), NULL},
   { "detail", 'i', 0, G_OPTION_ARG_NONE, &extra_detail, N_("Show extra information"), NULL},
   { "tcrypt-pim", 0, 0, G_OPTION_ARG_INT, &tcrypt_pim, N_("The numeric PIM when unlocking a VeraCrypt volume"), N_("PIM")},
   { "tcrypt-hidden", 0, 0, G_OPTION_ARG_NONE, &tcrypt_hidden, N_("Mount a TCRYPT hidden volume"), NULL},