diff --git a/autoload/fugitive.vim b/autoload/fugitive.vim
index d78e470..2b5fdd2 100644
--- a/autoload/fugitive.vim
+++ b/autoload/fugitive.vim
@@ -511,7 +511,7 @@ function! fugitive#Real(url) abort
     let tree = FugitiveTreeForGitDir(dir)
     return s:PlatformSlash((len(tree) ? tree : dir) . file)
   endif
-  let url = fnamemodify(a:url, ':p' . (a:url =~# '[\/]$' ? '' : ':s?[\/]$??'))
+  let url = len(url) ? fnamemodify(a:url, ':p' . (a:url =~# '[\/]$' ? '' : ':s?[\/]$??')) : ''
   if url =~# '^[\\/]\|^\a:[\\/]'
     return s:PlatformSlash(url)
   endif
@@ -519,7 +519,7 @@ function! fugitive#Real(url) abort
 endfunction
 
 function! fugitive#Path(url, ...) abort
-  if !a:0
+  if !a:0 || empty(a:url)
     return fugitive#Real(a:url)
   endif
   let url = s:shellslash(fnamemodify(a:url, ':p'))
diff --git a/plugin/fugitive.vim b/plugin/fugitive.vim
index 0ce9246..99d04e8 100644
--- a/plugin/fugitive.vim
+++ b/plugin/fugitive.vim
@@ -143,7 +143,7 @@ function! FugitiveReal(...) abort
   let file = a:0 ? a:1 : @%
   if file =~? '^fugitive:' || a:0 > 1
     return call('fugitive#Real', [file] + a:000[1:-1])
-  elseif file =~# '^/\|^\a\+:'
+  elseif file =~# '^/\|^\a\+:\|^$'
     return file
   else
     return fnamemodify(file, ':p' . (file =~# '[\/]$' ? '' : ':s?[\/]$??'))