Syntax error in mod_perl but not in shell command

[william]

Hello, I am running this code

print "Content-type: text/html\n\n";

use Switch;
$t =1;

switch ($t) {
                case 1          { print "number 1\n"; }
}

I have not problem running in shell command
[EMAIL PROTECTED]:/var/www/modperl$ perl test.pl
Content-type: text/html

number 1

But when I ran in mod_perl , I got error
[Thu May 29 14:48:16 2008] [error] syntax error at
/var/www/modperl/test.pl line 6, near ") {"\nNumber found where
operator expected at /var/www/modperl/test.pl line 7, near "case
1"\nsyntax error at /var/www/modperl/test.pl line 8, near "}\n}"\n


Thanks