diff --git a/modules/darwin/base/nix/default.nix b/modules/darwin/base/nix/default.nix
index 79321e7a..bfa12991 100644
--- a/modules/darwin/base/nix/default.nix
+++ b/modules/darwin/base/nix/default.nix
@@ -4,6 +4,7 @@
   nix = {
     configureBuildUsers = true;
     gc.interval = if config.chvp.base.nix.slowGc then { Hour = 0; Minute = 0; } else { Minute = 0; };
+    settings.sandbox = true;
   };
   services.nix-daemon.enable = true;
 }