"Hide Application" generates invalid .desktop files (which leads to problems with other applications)

$ xfce4-popup-whiskermenu --version
xfce4-popup-whiskermenu 2.5.3
Copyright (C) 2013 Graeme Gott
$ cat ~/.local/share/applications/xfce4-about.desktop
[Desktop Entry]
Hidden=true

$ desktop-file-validate ~/.local/share/applications/xfce4-about.desktop 
~/.local/share/applications/xfce4-about.desktop: error: required key "Type" in group "Desktop Entry" is not present
~/.local/share/applications/xfce4-about.desktop: error: required key "Name" in group "Desktop Entry" is not present