diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index d8b560e..61b03fe 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -18,6 +18,8 @@
   boot.loader.efi.canTouchEfiVariables = true;
   boot.loader.efi.efiSysMountPoint = "/boot/efi";
 
+  boot.cleanTmpDir = true;
+
   networking.hostName = "pierre"; # Define your hostname.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.