--- usr/share/applications/ganttproject.desktop	2018-05-21 15:01:36.000000000 +0300
+++ ganttproject.desktop	2018-08-03 14:09:33.546295667 +0300
@@ -7,5 +7,5 @@
 Exec=/usr/bin/ganttproject %U
 MimeType=application/x-ganttproject;
 Categories=Office;
-OnlyShowIn=GNOME;KDE;Unity;LXDE;MATE;Cinnamon;
+OnlyShowIn=GNOME;KDE;Unity;LXDE;MATE;Cinnamon;XFCE
 GenericName=GanttProject