diff --git a/modules/nixos/core-server.nix b/modules/nixos/core-server.nix
index 107b487..b8b8f04 100644
--- a/modules/nixos/core-server.nix
+++ b/modules/nixos/core-server.nix
@@ -33,11 +33,11 @@
 
   nix = {
     package = pkgs.nixUnstable;
-    # run garbage collector dailt
+    # run garbage collector daily
     gc = {
       automatic = true;
       dates = "daily";
-      options = "--delete-older-than 1w";
+      options = "--delete-older-than 7d";
     };
     settings = {
       auto-optimise-store = true;