diff --git a/packages/tools/games/key-mapper/default.nix b/packages/tools/games/key-mapper/default.nix
index ff06d6f..97ae2e3 100644
--- a/packages/tools/games/key-mapper/default.nix
+++ b/packages/tools/games/key-mapper/default.nix
@@ -1,4 +1,10 @@
-{ pkgs, lib, python3Packages, python3, gtk3, gobject-introspection, git, wrapGAppsHook, gnome, makeDesktopItem }:
+{
+  pkgs, lib
+, python3Packages, python3
+, gtk3, gobject-introspection, git, gnome
+, wrapGAppsHook
+, makeDesktopItem
+}:
 
 python3Packages.buildPythonApplication rec {
   pname = "key-mapper";
@@ -35,10 +41,16 @@ python3Packages.buildPythonApplication rec {
     ${python3}/bin/${python3.executable} setup.py install_data --install-dir=$out --root=$out
   '';
 
+  postInstall = ''
+    mkdir -p $out/share/icons/hicolor/scalable/apps/
+    cp -r ${desktopItem}/share/applications $out/share/
+    cp $out/usr/share/key-mapper/key-mapper.svg $out/share/icons/hicolor/scalable/apps/key-mapper.svg
+  '';
+  
   desktopItem = makeDesktopItem {
     name = "key-mapper";
-    exec = "$out/bin/key-mapper-gtk";
-    icon = "$out/usr/share/key-mapper/key-mapper.svg";
+    exec = "key-mapper-gtk";
+    icon = "key-mapper";
     desktopName = "key-mapper";
     genericName = "key-mapper";
   };