diff --git a/hosts/nixos-common.nix b/hosts/nixos-common.nix
index b310b8c..2e0fdf3 100644
--- a/hosts/nixos-common.nix
+++ b/hosts/nixos-common.nix
@@ -31,6 +31,13 @@
   networking.firewall.allowedTCPPorts = [ 22 ];
   # networking.firewall.allowedUDPPorts = [ ... ];
 
+  # Auto store clean
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 7d";
+  };
+
   # This option defines the first version of NixOS you have installed on this particular machine, and is used
   # to maintain compatibility with application data (e.g. databases) created on older NixOS versions. Most
   # users should NEVER change this value after the initial install, for any reason, even if you've upgraded