diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index f2dc14d..700866d 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -1129,7 +1129,9 @@ function! s:Move(force,destination)
     endif
   endif
   if isdirectory(s:buffer().name())
-    call s:buffer().setvar('&swapfile',0)
+    " Work around Vim parser idiosyncrasy
+    let b = s:buffer()
+    call b.setvar('&swapfile',0)
   endif
   let message = call(s:repo().git_chomp_in_tree,['mv']+(a:force ? ['-f'] : [])+['--', s:buffer().path(), destination], s:repo())
   if v:shell_error