diff --git a/nixos/layers/dev-nix.nix b/nixos/layers/dev-nix.nix
index 0830861d232012127f79b34aa38339c6b0dfd9ac..3f8e73360ebff66a4ecc613e5f5f4ead4148fe42 100644
--- a/nixos/layers/dev-nix.nix
+++ b/nixos/layers/dev-nix.nix
@@ -4,5 +4,6 @@
   environment.systemPackages = with pkgs; [
     nix-prefetch-git
     nix-prefetch-github
+    nix-index
   ];
 }