COPY with composite type column

Hi all.

I have this composite type:

create type ct as (
  ct1 text,
  ct2 int
);

Then I have this table

create table atable (
  somedata numeric,
  otherdata text,
  compo ct
);

when I try to COPY data to that table and use the following "query"
I get a syntax error message:

COPY atable( somedata,(ct).ct1 ) from stdin;
ERROR:  syntax error at or near "("
LINE 1: COPY atable( somedata,(ct).ct1 ) from stdin;
                              ^

The "caret" points to the open parenthesis in "(ct)".
Same error is reported on the first open parenthesis if I write "((ct.).ct1)".

Any hint on how to write this COPY?

--
Reg me, please!