diff --git a/plugin/rhubarb.vim b/plugin/rhubarb.vim
index e326e27..9531048 100644
--- a/plugin/rhubarb.vim
+++ b/plugin/rhubarb.vim
@@ -15,9 +15,11 @@ if get(g:, 'fugitive_git_command', 'git') ==# 'git' && executable('hub')
   let g:fugitive_git_command = 'hub'
 endif
 
-function! s:config() abort
+function! s:Config() abort
   if exists('*FugitiveCommonDir')
     let dir = FugitiveCommonDir()
+  elseif exists('*FugitiveRoute')
+    let dir = FugitiveRoute('.git/config')[0:-8]
   else
     let dir = get(b:, 'git_dir', '')
     let common_dir = b:git_dir . '/commondir'
@@ -34,7 +36,7 @@ augroup rhubarb
         \ if expand('%:p') =~# '\.git[\/].*MSG$' &&
         \   exists('+omnifunc') &&
         \   &omnifunc =~# '^\%(syntaxcomplete#Complete\)\=$' &&
-        \   !empty(filter(s:config(),
+        \   !empty(filter(s:Config(),
         \     '!empty(rhubarb#homepage_for_url(matchstr(v:val, ''^\s*url\s*=\s*"\=\zs\S*'')))')) |
         \   setlocal omnifunc=rhubarb#omnifunc |
         \ endif