diff --git a/common.nix b/common.nix
index b077b10..5cf1757 100644
--- a/common.nix
+++ b/common.nix
@@ -29,8 +29,6 @@ all: {
     lib.mkDefault "idle";
 
   nix = {
-    optimise.automatic = true;
-
     gc = {
       automatic = lib.mkDefault true;
       dates = lib.mkDefault "20:00";