diff --git a/pkgs/tools/misc/samrewritten/default.nix b/pkgs/tools/misc/samrewritten/default.nix
index 11ae096..8cdcbea 100644
--- a/pkgs/tools/misc/samrewritten/default.nix
+++ b/pkgs/tools/misc/samrewritten/default.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation rec {
   pname = "SamRewritten";
-  version = "2.0";
+  version = "2.1";
 
   src = fetchFromGitHub {
     owner = "PaulCombal";
     repo = pname;
-    rev = "202005";
-    sha256 = "0zcb6cmzk4fvbf0rkyyfvlnh9mhi0wz89parprkz6vxrj65ph1f6";
+    rev = "202008";
+    sha256 = "ab7903b997675b0d4d7eede15430fc5ca2736e6c25c7f95a7c97e1ce25582a1c";
   };
 
   nativeBuildInputs = [ gnumake pkg-config ];
@@ -33,21 +33,10 @@ stdenv.mkDerivation rec {
 
   NIX_CFLAGS_LINK = "-pthread";
 
-  # FIXME: Use `make install` after the next release
-  # FIXME: Get `substituteInPlace` working
-  installPhase = ''
-    mkdir -p $out/lib/SamRewritten/{bin,glade,assets}
-    mkdir -p $out/share/icons/hicolor/{64x64,256x256}/apps
-    mkdir -p $out/share/applications
-    mkdir -p $out/bin
-    cp bin/launch.sh bin/samrewritten bin/libsteam_api.so $out/lib/SamRewritten/bin/
-    ln -s $out/lib/SamRewritten/bin/launch.sh $out/bin/samrewritten
-    cp glade/main_window.glade $out/lib/SamRewritten/glade/main_window.glade
-    cp assets/icon_64.png $out/share/icons/hicolor/64x64/apps/samrewritten.png
-    cp assets/icon_256.png $out/share/icons/hicolor/256x256/apps/samrewritten.png
-    cp assets/icon_256.png $out/lib/SamRewritten/assets/
+  makeFlags = [ "PREFIX=$(out)" ];
 
-    substitute package/samrewritten.desktop $out/share/applications/samrewritten.desktop \
+  postFixup = ''
+    substituteInPlace $out/share/applications/samrewritten.desktop \
       --replace /usr/bin/samrewritten $out/bin/samrewritten
   '';