diff --git a/Makefile b/Makefile
index 83af856..779e0a9 100644
--- a/Makefile
+++ b/Makefile
@@ -44,6 +44,7 @@ vim:
 	ln -s $(PWD)/light/.vimrc ~/.vimrc
 	mkdir -p ~/.config/nvim/lua
 	ln -s ~/.vim/vimrc ~/.config/nvim/init.vim
+	ln -s $(PWD)/functions/vim_askpass_helper ~/.local/bin
 	ln -s $(PWD)/sub/vim/init.lua ~/.config/nvim/lua/init.lua
 	git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
 	nvim +PluginInstall +qall
diff --git a/functions/vim_askpass_helper b/functions/vim_askpass_helper
new file mode 100755
index 0000000..a530c4d
--- /dev/null
+++ b/functions/vim_askpass_helper
@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+echo -e "OPTION title=vim\nOPTION default-prompt=[sudo] password for $USER:\nGETPIN" | pinentry-qt --display :0 2>/dev/null | grep ^D | cut -d" " -f2
diff --git a/sub/vim/vimrc b/sub/vim/vimrc
index e136565..a241069 100644
--- a/sub/vim/vimrc
+++ b/sub/vim/vimrc
@@ -282,3 +282,8 @@ nnoremap <silent> <Leader>qa :qa!<CR>
 
 " expand %% to dirname of cur file in commandline
 cnoremap <expr> %% getcmdtype() == ':' ? expand('%:h').'/' : '%%'
+
+
+
+# :Sw to save file by root
+command Sw execute 'silent! write !SUDO_ASKPASS=$(which vim_askpass_helper) sudo -A tee % >/dev/null'