diff --git a/pkgs/by-name/ut/ut1999/package.nix b/pkgs/by-name/ut/ut1999/package.nix
index 2e2652f41178..9604c4f51a53 100644
--- a/pkgs/by-name/ut/ut1999/package.nix
+++ b/pkgs/by-name/ut/ut1999/package.nix
@@ -102,8 +102,9 @@ in stdenv.mkDerivation {
     runHook postInstall
   '';
 
-  # .so files in the SystemARM64 directory are not loaded properly on aarch64-linux
-  appendRunpaths = lib.optionals (stdenv.hostPlatform.system == "aarch64-linux") [
+  # Bring in game's .so files into lookup. Otherwise game fails to start
+  # as: `Object not found: Class Render.Render`
+  appendRunpaths = [
     "${placeholder "out"}/${systemDir}"
   ];