diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index 7f3f987..f47e62b 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -767,6 +767,8 @@ function! s:Write(force,...) abort
     return 'write|bdelete'
   elseif expand('%:t') == 'COMMIT_EDITMSG' && $GIT_INDEX_FILE != ''
     return 'wq'
+  elseif s:buffer().type() == 'index'
+    return 'Gcommit'
   endif
   let mytab = tabpagenr()
   let mybufnr = bufnr('')