diff --git a/.vimrc b/.vimrc
index ff9105b..723d3f2 100644
--- a/.vimrc
+++ b/.vimrc
@@ -161,4 +161,11 @@ set wildignore+=*/tmp/*,*.so,*.swp,*.zip     " MacOSX/Linux
 set wildignore+=*\\tmp\\*,*.swp,*.zip,*.exe  " Windows
 let g:ctrlp_custom_ignore = '\v[\/]\.(git|hg|svn)$'
 
+"https://jeffkreeftmeijer.com/vim-number/
+set number relativenumber
 
+augroup numbertoggle
+  autocmd!
+  autocmd BufEnter,FocusGained,InsertLeave * set relativenumber
+  autocmd BufLeave,FocusLost,InsertEnter   * set norelativenumber
+augroup END