diff --git a/src/graph/graph.hh b/src/graph/graph.hh
index ab95a71c4..64878a84a 100644
--- a/src/graph/graph.hh
+++ b/src/graph/graph.hh
@@ -141,7 +141,7 @@ struct graph_t
     {
       for (unsigned i = 0; i < obj.real_links.length; i++)
       {
-        auto& link = obj.real_links[i];
+        auto& link = obj.real_links.arrayZ[i];
         if (link.objidx != child_index)
           continue;