diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index a6c0a1d..3a984c8 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -133,7 +133,7 @@ function! fugitive#extract_git_dir(path) abort
   return ''
 endfunction
 
-function! s:Detect(path)
+function! fugitive#detect(path)
   if exists('b:git_dir') && (b:git_dir ==# '' || b:git_dir =~# '/$')
     unlet b:git_dir
   endif
@@ -162,10 +162,10 @@ endfunction
 
 augroup fugitive
   autocmd!
-  autocmd BufNewFile,BufReadPost * call s:Detect(expand('<amatch>:p'))
-  autocmd FileType           netrw call s:Detect(expand('%:p'))
-  autocmd User NERDTreeInit,NERDTreeNewRoot call s:Detect(b:NERDTreeRoot.path.str())
-  autocmd VimEnter * if expand('<amatch>')==''|call s:Detect(getcwd())|endif
+  autocmd BufNewFile,BufReadPost * call fugitive#detect(expand('<amatch>:p'))
+  autocmd FileType           netrw call fugitive#detect(expand('%:p'))
+  autocmd User NERDTreeInit,NERDTreeNewRoot call fugitive#detect(b:NERDTreeRoot.path.str())
+  autocmd VimEnter * if expand('<amatch>')==''|call fugitive#detect(getcwd())|endif
   autocmd BufWinLeave * execute getwinvar(+bufwinnr(+expand('<abuf>')), 'fugitive_leave')
 augroup END
 
@@ -2251,7 +2251,7 @@ augroup fugitive_temp
         \ if has_key(s:temp_files,expand('<afile>:p')) |
         \   let b:git_dir = s:temp_files[expand('<afile>:p')] |
         \   let b:git_type = 'temp' |
-        \   call s:Detect(expand('<afile>:p')) |
+        \   call fugitive#detect(expand('<afile>:p')) |
         \   setlocal bufhidden=delete |
         \   nnoremap <buffer> <silent> q    :<C-U>bdelete<CR>|
         \ endif