diff --git a/demos/gtk-demo/tree_store.c b/demos/gtk-demo/tree_store.c
index 5b113a4..e41d540 100644
--- a/demos/gtk-demo/tree_store.c
+++ b/demos/gtk-demo/tree_store.c
@@ -89,7 +89,7 @@ static TreeItem A[] = {{ "C", C }, { "D", D }, { NULL }};
 static TreeItem R[] = {{ "A", A }, { "B", B }, { NULL }}; //  ROOT
 static TreeItem O[] = {{ "R", R }, { NULL }}; //  Artefact added for symmetry
 
-static void create_node(GtkTreeStore *model,
+static void create_node (GtkTreeStore *model,
                          GtkTreeIter *iter_children,
                          TreeItem *item_children,
                          GtkTreeIter *iter_parent)
@@ -98,6 +98,24 @@ static void create_node(GtkTreeStore *model,
   gtk_tree_store_set (model, iter_children, COLUMN_0, item_children->label, -1);
 }
 
+static TreeItem create_node_recursive (GtkTreeStore *model, TreeItem *current_item)
+{
+  TreeItem   *item_children;
+  GtkTreeIter iter_children, iter_parent;
+
+  if (current_item->children) {
+    item_children = current_item->children;
+
+    while (item_children->label) {
+      gtk_tree_store_append (model, &iter_children, &iter_parent);
+      gtk_tree_store_set (model, &iter_children, COLUMN_0, item_children->label, -1);
+      item_children++;
+      create_node_recursive (model, item_children);
+    }
+  }
+  return *item_children;
+}
+
 static GtkTreeModel *
 create_model (void)
 {