diff --git a/.vim/ftplugin/mail.vim b/.vim/ftplugin/mail.vim
--- a/.vim/ftplugin/mail.vim
+++ b/.vim/ftplugin/mail.vim
@@ -3,6 +3,8 @@ setl formatoptions=jaw12tcql
 setl spell
 setl noundofile noswapfile nobackup
 
+setl equalprg=pandoc\ -f\ markdown\ -t\ markdown
+
 " http://cedricduval.free.fr/download/mail.vim
 function! Mail_Erase_Sig()
   " search for the signature pattern (takes into account signature delimiters