diff --git a/configuration.nix b/configuration.nix
index 242884e..c45f1cc 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -38,7 +38,10 @@ with pkgs;
 
   # Run Nix garbage collector and enable flakes
   nix = {
-    autoOptimiseStore = true;
+    settings = {
+      auto-optimise-store = true;
+      trusted-users = [ "root" "coolneng" ];
+    };
     gc = {
       automatic = true;
       options = "--delete-older-than 7d";
@@ -51,7 +54,6 @@ with pkgs;
       experimental-features = nix-command flakes
     '';
     package = nixUnstable;
-    trustedUsers = [ "root" "coolneng" ];
   };
 
   # Clean tmp directory on shutdown