diff --git a/dotfiles/.vimrc b/dotfiles/.vimrc
index 2c55e0a..5377873 100644
--- a/dotfiles/.vimrc
+++ b/dotfiles/.vimrc
@@ -19,7 +19,7 @@ nnoremap <Space>t :tabnew<CR>
 set autoindent
 set backup
 set backupdir=$HOME/.vim/tmp
-set expandtab
+"set expandtab
 set foldmethod=marker
 set ignorecase
 set laststatus=2
@@ -31,12 +31,16 @@ set number
 set shiftwidth=2
 set smartcase
 set smartindent
-set softtabstop=2
+"set softtabstop=2
 set statusline=%<%f\ %h%m%r%=\ %l/%L,%c%y
 set visualbell
 set whichwrap=b,s,h,l,<,>,~,[,]
 syntax on
 
+"全角スペースを視覚化
+highlight ZenkakuSpace cterm=underline ctermfg=lightblue guibg=#666666
+au BufNewFile,BufRead * match ZenkakuSpace /　/
+
 "for matchit.vim
 source $VIMRUNTIME/macros/matchit.vim
 let b:match_words = &matchpairs.'<\([A-Za-z_\:][A-Za-z0-9.\-_\:]*\):</\1'