diff --git a/home/programs/nvim/plugins/nvimtree.lua b/home/programs/nvim/plugins/nvimtree.lua
index a7194b5..f086b75 100644
--- a/home/programs/nvim/plugins/nvimtree.lua
+++ b/home/programs/nvim/plugins/nvimtree.lua
@@ -3,9 +3,25 @@ vim.g.loaded_netrwPlugin = 1
 
 vim.opt.termguicolors = true
 
+local function my_on_attach(bufnr)
+  local api = require "nvim-tree.api"
+
+  local function opts(desc)
+    return { desc = "nvim-tree: " .. desc, buffer = bufnr, noremap = true, silent = true, nowait = true }
+  end
+
+  -- default mappings
+  api.config.mappings.default_on_attach(bufnr)
+
+  -- custom mappings
+  vim.keymap.set('n', '<C-t>', api.tree.change_root_to_parent,        opts('Up'))
+  vim.keymap.set('n', '?',     api.tree.toggle_help,                  opts('Help'))
+end
+
 require('nvim-tree').setup()
 
 require('nvim-tree').setup({
+  on_attack = my_on_attach,
   sort_by = 'case_sensitive',
   view = {
     adaptive_size = false,