diff --git a/modules/global/nix.nix b/modules/global/nix.nix
index e94cea8..509d783 100644
--- a/modules/global/nix.nix
+++ b/modules/global/nix.nix
@@ -65,6 +65,8 @@ with lib;
       nixpkgs-fmt
       nix-du
       comma
+      nix-diff
+      nix-tree
 
       (writeScriptBin "wherenix" ''
         #!/usr/bin/env bash