diff --git a/modules/system/module.nix b/modules/system/module.nix
index d571ea1..8fc29c9 100644
--- a/modules/system/module.nix
+++ b/modules/system/module.nix
@@ -1,4 +1,6 @@
-{
+{config, ...}: let
+  machine-id = builtins.substring 0 23 (builtins.hashString "sha256" config.networking.hostName);
+in {
   system = {
     # faster rebuilds
     switch = {
@@ -8,4 +10,5 @@
     # our state version
     stateVersion = "23.11";
   };
+  environment.etc."machine-id".text = "${machine-id}\n";
 }