replaced.diff

diff --git a/src/vm/moar/ops/perl6_ops.c b/src/vm/moar/ops/perl6_ops.c
index cc37e1b..f3c86ba 100644
--- a/src/vm/moar/ops/perl6_ops.c
+++ b/src/vm/moar/ops/perl6_ops.c
@@ -280,11 +280,11 @@ static MVMuint8 s_p6listitems[] = {
 static void p6listitems(MVMThreadContext *tc) {
      MVMObject *list = GET_REG(tc, 2).o;
      if (MVM_6model_istype_cache_only(tc, list, List)) {
-        MVMObject *items = ((Rakudo_List *)list)->items;
+        MVMObject *items = ((Rakudo_List *)MVMP6opaque_real_data(tc, OBJECT_BODY(list)))->items;
         if (!items || !IS_CONCRETE(items) || REPR(items)->ID != MVM_REPR_ID_MVMArray) {
             MVMROOT(tc, list, {
                 items = MVM_repr_alloc_init(tc, tc->instance->boot_types.BOOTArray);
-                MVM_ASSIGN_REF(tc, &(list->header), ((Rakudo_List *)list)->items, items);
+                MVM_ASSIGN_REF(tc, &(list->header), ((Rakudo_List *)MVMP6opaque_real_data(tc, OBJECT_BODY(list)))->items, items);
             });
         }
         GET_REG(tc, 0).o = items;