Index: plater.desktop
--- plater.desktop.orig
+++ plater.desktop
@@ -4,7 +4,7 @@ Name=Plater
 GenericName=Plate building tool
 Comment=Prepares plates for 3D printing
 Icon=plater
-Exec=/usr/bin/plater.py
+Exec=${PREFIX}/bin/plater
 StartupNotify=true
 Terminal=false
 Categories=GNOME;GTK;Utility;Graphics;3DGraphics;