diff --git a/modules/base/default.nix b/modules/base/default.nix
index b3c8653..640d24d 100644
--- a/modules/base/default.nix
+++ b/modules/base/default.nix
@@ -9,8 +9,6 @@
     package = pkgs.nix;
 
     settings = {
-      auto-optimise-store = true;
-
       experimental-features = [
         "nix-command"
         "flakes"
@@ -35,6 +33,8 @@
         "larstvei.cachix.org-1:mJq98qeTBnm2xNNibn2BEwN1ggi6uQg+5hWASdG1Vys="
       ];
     };
+
+    optimise.automatic = true;
   };
 
   environment.systemPackages = [