diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index 3bcab0a..d272ffc 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -1000,7 +1000,7 @@ call s:command("-bang -bar -nargs=? -complete=customlist,s:EditComplete Gdiff :e
 
 augroup fugitive_diff
   autocmd!
-  autocmd BufWinLeave * if s:diff_window_count() == 2 && &diff && getbufvar(+expand('<abuf>'), 'git_dir') !=# '' | windo call s:diff_off() | endif
+  autocmd BufWinLeave * if s:diff_window_count() == 2 && &diff && getbufvar(+expand('<abuf>'), 'git_dir') !=# '' | execute 'windo call s:diff_off()' | endif
   autocmd BufWinEnter * if s:diff_window_count() == 1 && &diff && getbufvar(+expand('<abuf>'), 'git_dir') !=# '' | call s:diff_off() | endif
 augroup END