diff --git a/modules/common/nix.nix b/modules/common/nix.nix
index 4e23477..b5db406 100644
--- a/modules/common/nix.nix
+++ b/modules/common/nix.nix
@@ -1,6 +1,11 @@
 { config, ... }:
 {
     nix = {
+      gc = {
+        automatic = true;
+        options = "--delete-older-than 2d";
+      };
+
       settings = {
         experimental-features = [ "nix-command" "flakes" ];
 
@@ -31,4 +36,4 @@
         allowUnfree = true;
       };
     };
-}
\ No newline at end of file
+}