diff --git a/hostconfig/ZeNixComputa/nixos.nix b/hostconfig/ZeNixComputa/nixos.nix
index 8775bb7..9d20682 100644
--- a/hostconfig/ZeNixComputa/nixos.nix
+++ b/hostconfig/ZeNixComputa/nixos.nix
@@ -61,6 +61,10 @@
 
   hardware.cpu.amd.updateMicrocode = true;
 
+  nix.extraOptions = ''
+    keep-derivations = true
+  '';
+
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave