diff --git a/viml/legacyconf.vim b/viml/legacyconf.vim
index 37395cd..29d66f9 100644
--- a/viml/legacyconf.vim
+++ b/viml/legacyconf.vim
@@ -95,3 +95,5 @@ function! Build()
 endfunction
 
 nnoremap <C-b> :call Build()<CR>
+nnoremap <C-w> :bdelete<CR>
+nnoremap <C-y> :b#<CR>