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diff --git a/lib/Moose/Meta/TypeCoercion/Union.pm b/lib/Moose/Meta/TypeCoercion/Union.pm
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+package Moose::Meta::TypeCoercion::Union;
+our $VERSION = '2.1405';
+
+use strict;
+use warnings;
+use metaclass;
+
+use Scalar::Util 'blessed';
+
+use parent 'Moose::Meta::TypeCoercion';
+
+use Moose::Util 'throw_exception';
+
+sub compile_type_coercion {
+    my $self            = shift;
+    my $type_constraint = $self->type_constraint;
+
+    (blessed $type_constraint && $type_constraint->isa('Moose::Meta::TypeConstraint::Union'))
+     || throw_exception( NeedsTypeConstraintUnionForTypeCoercionUnion => type_coercion_union_object => $self,
+                                                                         type_name                  => $type_constraint->name
+                       );
+
+    $self->_compiled_type_coercion(
+        sub {
+            my $value = shift;
+
+            foreach my $type ( grep { $_->has_coercion }
+                @{ $type_constraint->type_constraints } ) {
+                my $temp = $type->coerce($value);
+                return $temp if $type_constraint->check($temp);
+            }
+
+            return $value;
+        }
+    );
+}
+
+sub has_coercion_for_type { 0 }
+
+sub add_type_coercions {
+    my $self = shift;
+    throw_exception( CannotAddAdditionalTypeCoercionsToUnion => type_coercion_union_object => $self );
+}
+
+1;
+
+# ABSTRACT: The Moose Type Coercion metaclass for Unions
+
+__END__
+
+=pod
+
+=encoding UTF-8
+
+=head1 NAME
+
+Moose::Meta::TypeCoercion::Union - The Moose Type Coercion metaclass for Unions
+
+=head1 VERSION
+
+version 2.1405
+
+=head1 DESCRIPTION
+
+This is a subclass of L<Moose::Meta::TypeCoercion> that is used for
+L<Moose::Meta::TypeConstraint::Union> objects.
+
+=head1 METHODS
+
+=over 4
+
+=item B<< $coercion->has_coercion_for_type >>
+
+This method always returns false.
+
+=item B<< $coercion->add_type_coercions >>
+
+This method always throws an error. You cannot add coercions to a
+union type coercion.
+
+=item B<< $coercion->coerce($value) >>
+
+This method will coerce by trying the coercions for each type in the
+union.
+
+=back
+
+=head1 BUGS
+
+See L<Moose/BUGS> for details on reporting bugs.
+
+=head1 AUTHORS
+
+=over 4
+
+=item *
+
+Stevan Little <stevan.little@iinteractive.com>
+
+=item *
+
+Dave Rolsky <autarch@urth.org>
+
+=item *
+
+Jesse Luehrs <doy@tozt.net>
+
+=item *
+
+Shawn M Moore <code@sartak.org>
+
+=item *
+
+יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>
+
+=item *
+
+Karen Etheridge <ether@cpan.org>
+
+=item *
+
+Florian Ragwitz <rafl@debian.org>
+
+=item *
+
+Hans Dieter Pearcey <hdp@weftsoar.net>
+
+=item *
+
+Chris Prather <chris@prather.org>
+
+=item *
+
+Matt S Trout <mst@shadowcat.co.uk>
+
+=back
+
+=head1 COPYRIGHT AND LICENSE
+
+This software is copyright (c) 2006 by Infinity Interactive, Inc..
+
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
+
+=cut