--- scanmem-0.13/gui/GameConqueror.desktop
+++ scanmem-0.13/gui/GameConqueror.desktop
@@ -4,6 +4,6 @@
 Exec=gameconqueror
 Terminal=false
 Type=Application
-Icon=GameConqueror_128x128.png
-Categories=GNOME;Application;Game;
+Icon=GameConqueror_128x128
+Categories=GNOME;GTK;Game;
 StartupNotify=true