Is my locale wrong?

[Tapio Lehtonen <tale@iki.fi>]

Hello,
I keep getting error messages about locale. My locale is set like this:

tale@dilbert ~/Work/Debian-doc/ddp $ set | grep LC
LC_CTYPE=finnish.iso88591
MAILCHECK=60
tale@dilbert ~/Work/Debian-doc/ddp $

But I get these errors:

$ debiandoc2ps debian-tutorial.sgml
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LC_ALL = (unset),
        LC_CTYPE = "finnish.iso88591",
        LANG = (unset)
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LC_ALL = (unset),
        LC_CTYPE = "finnish.iso88591",
        LANG = (unset)
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LC_ALL = (unset),
        LC_CTYPE = "finnish.iso88591",
        LANG = (unset)
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LC_ALL = (unset),
        LC_CTYPE = "finnish.iso88591",
        LANG = (unset)
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] 
[18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] 
[33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] 
[48] Wrote 48 pages, 716873 bytes
tale@dilbert ~/Work/Debian-doc/Tutorial

Is this to be expected, is something wrong on my system, what to do?

-- 
Tapio Lehtonen
Tapio.Lehtonen@IKI.FI