diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index f097bfc..0097a62 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -249,6 +249,8 @@ in
   '';
   # use all cores for building
   nix.buildCores = 0;
+  # override tmpdir for daemon
+  #systemd.services.nix-daemon.environment.TMPDIR = "/var/tmp";
 
   # package debugging
   # programs.sysdig.enable = true;