diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index 7116459..a4aabf3 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -137,7 +137,7 @@ endfunction
 
 if exists('+shellslash')
 
-  let s:dir_commit_file = '\c^fugitive://\%(/[^/]\@=\)\=\(.\{-\}\)//\%(\(\x\{40,\}\|[0-3]\)\(/.*\)\=\)\=$'
+  let s:dir_commit_file = '\c^fugitive://\%(/[^/]\@=\)\=\(.\{-1,\}\)//\%(\(\x\{40,\}\|[0-3]\)/\=\(/.*\)\=\)\=$'
 
   function! s:Slash(path) abort
     return tr(a:path, '\', '/')