--- /dev/null
+use strict;
+use warnings;
+use Test::More;
+
+{
+ package ClassA;
+ use Moo;
+
+ has 'foo' => ( is => 'ro');
+}
+
+{
+ package ClassB;
+ our @ISA = 'ClassA';
+}
+
+package main;
+
+my $o = ClassB->new;
+isa_ok $o, 'ClassB';
+
+done_testing;