if (parse_tree_gently(tree, revs->ignore_missing_links) < 0) {
                if (revs->ignore_missing_links)
                        return;
-               die("bad tree object %s", sha1_to_hex(obj->sha1));
+               die("bad tree object %s", oid_to_hex(&obj->oid));
        }
 
        obj->flags |= SEEN;
                        continue;
                }
                die("unknown pending object %s (%s)",
-                   sha1_to_hex(obj->sha1), name);
+                   oid_to_hex(&obj->oid), name);
        }
        object_array_clear(&revs->pending);
        strbuf_release(&base);