diff --git a/configuration.nix b/configuration.nix
index 99ce740..7d86c3d 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -81,6 +81,7 @@
   # Enable touchpad support (enabled default in most desktopManager).
   # services.xserver.libinput.enable = true;
   nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.auto-optimise-store = true;
 
   programs.nix-ld.enable = true;
   # programs.nix-ld.libraries = with pkgs; [