diff --git a/nixos/modules/services/cluster/k3s/default.nix b/nixos/modules/services/cluster/k3s/default.nix
index 7ac179d822ad..c9a69af2fa16 100644
--- a/nixos/modules/services/cluster/k3s/default.nix
+++ b/nixos/modules/services/cluster/k3s/default.nix
@@ -82,6 +82,8 @@ let
         nativeBuildInputs = with pkgs; [
           kubernetes-helm
           cacert
+          # Helm requires HOME to refer to a writable dir
+          writableTmpDirAsHomeHook
         ];
       }
       ''