Can't locate find.pl in @INC

#!/usr/bin/perl
#
# checkem.pl
#
# Simple perl file stats and md5 checksum printer.
#
#     checkem.pl directory [directory ..]
#
# We suggest you send the output to a file and
# compare with previous runs using 'diff.'
#
# Or, better yet, use a real File Integrity
# Tool such as Aide.
#
# Copyright 2001, Bri Hatch
# Released under GPL

use MD5;
require 'find.pl';

$md5=new MD5;
@dirs = @ARGV;

for $dir ( @dirs ) { find($dir); }

sub wanted { push @files, $name; }      # This subroutine is called
# for each file found

for $name ( sort @files ) {
($uid,$gid) = (stat $name)[4,5];
     $stat = sprintf "%0o", (stat _)[2];
     unless ( -f $name ) {
     printf "$stat\t$uid $gid\t\t\t\t\t$name\n";
     next;
     }                       # abort here if not a 'plain' file

     # Do a checksum
     $md5->reset();
     open FILE, $name or print(STDERR "Can't open file $name\n"), next;
     $md5->addfile(FILE);
     close FILE;

     $checksum = $md5->hexdigest();
     printf "$stat\t$uid $gid $checksum\t$name\n";
}

Can't locate find.pl in @INC (@INC contains: /etc/perl /usr/local/lib64/perl5/5.20.2/x86_64-linux /usr/local/lib64/perl5/5.20.2 /usr/lib64/perl5/vendor_perl/5.20.2/x86_64-linux /usr/lib64/perl5/vendor_perl/5.20.2 /usr/local/lib64/perl5 /usr/lib64/perl5/vendor_perl /usr/lib64/perl5/5.20.2/x86_64-linux /usr/lib64/perl5/5.20.2 .) at ./checkem.pl line 19.