diff --git a/README.md b/README.md
index 74b6e22..fae1b20 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ or pressing `LCTRL + LWIN + MMB` (Middle Mouse Button).
 
 You can use `LCTRL + LWIN + I` hotkey for hide/show trayicon.
 You can also use commandline option `/hide` for hide trayicon at startup.
+The `/noupdate` option is used to disable check for updates. By default, the check is repeated once a day.
 
 `Use workarea` option means that the window is centered without a taskbar, otherwise, the full resolution of the monitor will be used.