diff --git a/system/common.nix b/system/common.nix
index 0417087..e584510 100644
--- a/system/common.nix
+++ b/system/common.nix
@@ -72,7 +72,7 @@
 
   nix = {
     # optimize the store
-    optimise.automatic = false;
+    optimise.automatic = true;
 
     # enable flakes!
     settings.experimental-features = [