diff --git a/hosts/default/configuration.nix b/hosts/default/configuration.nix
index 46f1e24..b67bbc0 100644
--- a/hosts/default/configuration.nix
+++ b/hosts/default/configuration.nix
@@ -294,7 +294,7 @@
   };
 
   # Automatic cleanup and optimization
-  nix.optimize.automatic = true;
+  nix.optimise.automatic = true;
   nix.gc = {
     automatic = true;
     dates = "weekly";