diff --git a/lua/keymap.lua b/lua/keymap.lua
index 3e94374..fa5b7f0 100644
--- a/lua/keymap.lua
+++ b/lua/keymap.lua
@@ -4,6 +4,9 @@ vim.keymap.set('n', '<leader>w', '<esc>:w<cr>', {desc = 'Write buffer', silent =
 -- quit keymap
 vim.keymap.set('n', '<leader>q', '<esc>:q<cr>', {desc = 'Quit', silent = true})
 
+-- close buffer keymap
+vim.keymap.set('n', '<leader>c', '<esc>:BufDel<cr>', {desc = 'Close buffer', silent = true})
+
 -- open nvimtree
 vim.keymap.set('n', '<leader>e', '<esc>:NvimTreeToggle<cr>', {desc = 'Open file explorer', silent = true})
 
@@ -44,6 +47,7 @@ vim.keymap.set('n', '<leader>sd', require('telescope.builtin').diagnostics, { de
 -- Diagnostic keymaps
 vim.keymap.set('n', '[d', vim.diagnostic.goto_prev)
 vim.keymap.set('n', ']d', vim.diagnostic.goto_next)
+vim.keymap.set('n', '<leader>ld', '<esc>:TroubleToggle<cr>', {desc = 'Buffer diagnostics', silent = true})
 -- vim.keymap.set('n', '<leader>ld', vim.diagnostic.open_float)
 -- vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist)