diff --git a/autoload/SpaceVim.vim b/autoload/SpaceVim.vim
index 4ab827914..7d16d0886 100644
--- a/autoload/SpaceVim.vim
+++ b/autoload/SpaceVim.vim
@@ -1597,16 +1597,19 @@ function! s:parser_argv() abort
     if index(v:argv, '--embed') !=# -1
           \ || len(v:argv) == 1
       return [0]
-    elseif v:argv[1] =~# '/$'
-      let f = fnamemodify(expand(v:argv[1]), ':p')
+    elseif index(v:argv, '-d') !=# -1
+      " this is  diff mode
+      return [2]
+    elseif v:argv[-1] =~# '/$'
+      let f = fnamemodify(expand(v:argv[-1]), ':p')
       if isdirectory(f)
         return [1, f]
       else
         return [1, getcwd()]
       endif
-    elseif v:argv[1] ==# '.'
+    elseif v:argv[-1] ==# '.'
       return [1, getcwd()]
-    elseif isdirectory(expand(v:argv[1]))
+    elseif isdirectory(expand(v:argv[-1]))
       return [1, fnamemodify(expand(v:argv[1]), ':p')]
     else
       return [2, get(v:, 'argv', ['failed to get v:argv'])]