diff --git a/home/util/nixos.nix b/home/util/nixos.nix
index 694b0f7f..83ab6066 100644
--- a/home/util/nixos.nix
+++ b/home/util/nixos.nix
@@ -4,7 +4,9 @@
 , ... }: with lib; let
   gui = with config.global.gui; ( enable && session );
 in {
-  users.home.persist.directories = [ ] ++
+  users.home.persist.directories = [
+    ".cache/nix-index"
+  ] ++
   optionals gui [
     ".local/share/Mission Planner"
     ".config/betaflight-configurator"