6.12.1rc1: non-Latin filenames in GHCi

I've noticed that when I load in GHCi a file that has a non-latin name, although it gets loaded, its name appears garbled in the message after the loading:

Prelude> :load πρόχειρον.hs [1 of 1] Compiling Main ( πρΠ¿ÌÏ‡ÎµÎ¹ÏÎ¿Î½.hs, interpreted ) Ok, modules loaded: Main. *Main>

Is this expected, or something is wrong with my setup? It's a rather insignificant issue, but I thought to ask about it. I'm using GHC 6.12.1rc1 on Mac OS X 10.6.1. Thanks very much, Christos Chryssochoidis