diff --git a/demos/gtk-demo/tree_store.c b/demos/gtk-demo/tree_store.c
index bf8eb5e..4b6e257 100644
--- a/demos/gtk-demo/tree_store.c
+++ b/demos/gtk-demo/tree_store.c
@@ -67,6 +67,7 @@ static TreeItem C[] = {{ "H", H }, { NULL }};
 static TreeItem B[] = {{ "E", E }, { "F", F }, { "G", G }, { NULL }};
 static TreeItem A[] = {{ "C", C }, { "D", D }, { NULL }};
 static TreeItem R[] = {{ "A", A }, { "B", B }, { NULL }};
+static TreeItem O[] = {{ "R", R }, { NULL }}; //  Artefact added for symetry
 
 static GtkTreeModel *
 iterate_node(GtkTreeStore *model, TreeItem *parent, TreeItem *children)
@@ -82,27 +83,28 @@ create_model (void)
 {
   GtkTreeStore *model = gtk_tree_store_new (NUM_COLUMNS, G_TYPE_STRING);
 
-  TreeItem *item_0 = R;
-  while (item_0->label)
-    {
+  TreeItem *item_0 = O->children;
+  while (item_0->label) {
+      iterate_node(model, O, item_0);
       GtkTreeIter iter;
       gtk_tree_store_append (model, &iter, NULL);
       gtk_tree_store_set (model, &iter, COLUMN_0, item_0->label, -1);
 
       TreeItem *item_1 = item_0->children;
       while (item_1->label) {
+          iterate_node(model, item_0, item_1);
           GtkTreeIter child_iter;
           gtk_tree_store_append (model, &child_iter, &iter);
           gtk_tree_store_set (model, &child_iter, COLUMN_0, item_1->label, -1);
 
           TreeItem *item_2 = item_1->children;
           while (item_2->label) {
-            GtkTreeIter child_child_iter;
-            iterate_node(model, item_1, item_2);
-            gtk_tree_store_append (model, &child_child_iter, &child_iter);
-            gtk_tree_store_set (model, &child_child_iter, COLUMN_0, item_2->label, -1);
+              iterate_node(model, item_1, item_2);
+              GtkTreeIter child_child_iter;
+              gtk_tree_store_append (model, &child_child_iter, &child_iter);
+              gtk_tree_store_set (model, &child_child_iter, COLUMN_0, item_2->label, -1);
 
-            item_2++;
+              item_2++;
           }
 
           item_1++;