diff --git a/overlays/stable.nix b/overlays/stable.nix
index 114740b..fca3710 100644
--- a/overlays/stable.nix
+++ b/overlays/stable.nix
@@ -4,7 +4,8 @@
 inputs: _final: prev: {
   # Provides `pkgs.stable`.
   stable = import inputs.nixpkgs-stable {
-    inherit (prev) system config;
+    system = prev.stdenv.hostPlatform.system;
+    inherit (prev) config;
     overlays = [
       # inputs.self.overlays.vim-plugins
     ];
diff --git a/overlays/unstable.nix b/overlays/unstable.nix
index f112c7c..22621c7 100644
--- a/overlays/unstable.nix
+++ b/overlays/unstable.nix
@@ -4,7 +4,8 @@
 inputs: _final: prev: {
   # Provides `pkgs.unstable`.
   unstable = import inputs.nixpkgs {
-    inherit (prev) system config;
+    system = prev.stdenv.hostPlatform.system;
+    inherit (prev) config;
     overlays = [
       # inputs.self.overlays.vim-plugins
     ];