diff --git a/modules/nix/linux.nix b/modules/nix/linux.nix
index 4508ccc..8741dea 100644
--- a/modules/nix/linux.nix
+++ b/modules/nix/linux.nix
@@ -6,4 +6,11 @@
 
   # Enable nix-command and flakes
   nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+  # Enable automatic garbage collection
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 14d";
+  };
 }