diff --git a/hosts/eos/default.nix b/hosts/eos/default.nix
index d8ead09..08777e4 100644
--- a/hosts/eos/default.nix
+++ b/hosts/eos/default.nix
@@ -19,6 +19,7 @@ with lib.my;
     experimental-features = nix-command flakes
     use-xdg-base-directories = true
   '';
+  nix.settings.auto-optimise-store = true;
 
   users.defaultUserShell = pkgs.zsh;