diff --git a/Docs/src/ui.but b/Docs/src/ui.but
index 84ef180e..57b43030 100644
--- a/Docs/src/ui.but
+++ b/Docs/src/ui.but
@@ -84,4 +84,4 @@ Same as \W{http://msdn.microsoft.com/library/en-us/winui/winui/windowsuserinterf
 
 \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{../Examples/WinMessages.nsh}{Examples\\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}{Widnows ShowWindow} function. SW_* are defined in \W{../Examples/WinMessages.NSH}{Examples\\WinMessages.NSH}.
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