diff --git a/minisforum/um-series.nix b/minisforum/um-series.nix
index 12b6374..2950f32 100644
--- a/minisforum/um-series.nix
+++ b/minisforum/um-series.nix
@@ -1,6 +1,6 @@
 # Common configuration for Minisforum UM series mini PCs
 # (UM690, UM690S, UM790 Pro)
-{ lib, ... }:
+{ ... }:
 
 {
   imports = [
@@ -9,6 +9,4 @@
     ../common/gpu/amd
     ../common/pc/ssd
   ];
-
-  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
 }