diff --git a/modules/user/home.nix b/modules/user/home.nix
index e7e42baf..a3a8c520 100644
--- a/modules/user/home.nix
+++ b/modules/user/home.nix
@@ -33,7 +33,7 @@ in {
     xdg.dataFile."shell.nix.tmpl" = {
       text = ''
         let
-          unstable = import (fetchTarball https://github.com/nixos/nixpkgs/archive/nixos-unstable.tar.gz) { };
+          unstable = import (fetchTarball "https://github.com/nixos/nixpkgs/archive/nixos-unstable.tar.gz") { };
         in
         { nixpkgs ? import <nixpkgs> {} }:
         with nixpkgs; mkShell {