diff --git a/Polyhedron/demo/Polyhedron/Scene_triangulation_3_item.cpp b/Polyhedron/demo/Polyhedron/Scene_triangulation_3_item.cpp
index 334bc7741cf..debb0673e63 100644
--- a/Polyhedron/demo/Polyhedron/Scene_triangulation_3_item.cpp
+++ b/Polyhedron/demo/Polyhedron/Scene_triangulation_3_item.cpp
@@ -659,7 +659,7 @@ Scene_triangulation_3_item::triangulation_changed()
   }
   const int max_subdomain_index = max;
   d->visible_subdomain.resize(max_subdomain_index+1, true);
-  d->is_filterable &=( d->subdomain_ids.size() <= 24);
+  d->is_filterable &=( d->subdomain_indices_.size() <= 24);
   for (Tr::Finite_facets_iterator fit = triangulation().finite_facets_begin(),
        end = triangulation().finite_facets_end(); fit != end; ++fit)
   {