diff --git a/Docs/src/ui.but b/Docs/src/ui.but
index 77e5ca2e..3d019f57 100644
--- a/Docs/src/ui.but
+++ b/Docs/src/ui.but
@@ -90,4 +90,4 @@ Sets a background color for a static control, edit control, button or a dialog.
 
 \c hwnd show_state
 
-Sets the visibilty of a window. Possible show_states are the same as \W{http://msdn.microsoft.com/library/en-us/winui/winui/windowsuserinterface/windowing/windows/windowreference/windowfunctions/showwindow.asp}{Widnows ShowWindow} function. SW_* are defined in \W{../Include/WinMessages.NSH}{Include\\WinMessages.NSH}.
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+Sets the visibilty of a window. Possible show_states are the same as \W{http://msdn.microsoft.com/library/en-us/winui/winui/windowsuserinterface/windowing/windows/windowreference/windowfunctions/showwindow.asp}{Windows ShowWindow} function. SW_* constants are defined in \W{../Include/WinMessages.nsh}{Include\\WinMessages.nsh}.
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