diff --git a/autoload/latex/util.vim b/autoload/latex/util.vim
index 0e83b9f..6d1c8e7 100644
--- a/autoload/latex/util.vim
+++ b/autoload/latex/util.vim
@@ -344,7 +344,7 @@ endfunction
 function! latex#util#set_vim_executable() " {{{1
   if exists('g:latex_vim_executable') | return | endif
 
-  if exists('mac')
+  if has('macunix') || has('gui_mac')
     let g:latex_vim_executable = 'mvim'
   else
     let g:latex_vim_executable = 'vim'