inconsistent file ordering for remote vs local dired

[gottlieb]

My systems run gnu-linux (gentoo) and emacs 24.3.

Consider a directory DIR with just two files: lower and Upper.
  /bin/ls DIR the files in the order "lower upper".
  emacs -Q dired DIR also lists them in the order "lower Upper".

But emacs -Q dired /localhost:DIR lists them in the order
"Upper lower".

How can I make them use the same ordering?

(Naturally, the interesting case is when using two systems and not
localhost).

thanks,
allan