diff --git a/home-mods/shell/default.nix b/home-mods/shell/default.nix
index 0950e0f..c14f150 100644
--- a/home-mods/shell/default.nix
+++ b/home-mods/shell/default.nix
@@ -216,6 +216,7 @@ in
       nil
       nixpkgs-fmt
       nodejs_20
+      tree
       pandoc
       python311Full
       python311Packages.epc