diff --git a/demos/gtk-demo/tree_store.c b/demos/gtk-demo/tree_store.c
index 0bee4e7..16506b7 100644
--- a/demos/gtk-demo/tree_store.c
+++ b/demos/gtk-demo/tree_store.c
@@ -54,7 +54,7 @@ enum
   COLUMN_1,
 
   VISIBLE_COLUMN,
-  WORLD_COLUMN,
+//  WORLD_COLUMN,
   NUM_COLUMNS
 };
 
@@ -117,7 +117,7 @@ create_model (void)
                           COLUMN_0, item_0->label,
                           COLUMN_1, FALSE,
                           VISIBLE_COLUMN, FALSE,
-                          WORLD_COLUMN, FALSE,
+                   //       WORLD_COLUMN, FALSE,
                           -1);
 
       /* add children */
@@ -130,7 +130,7 @@ create_model (void)
                               COLUMN_0, item_1->label,
                               COLUMN_1, item_1->AA,
                               VISIBLE_COLUMN, TRUE,
-                              WORLD_COLUMN, item_1->CC,
+                     //         WORLD_COLUMN, item_1->CC,
                               -1);
 
           item_1++;
@@ -153,7 +153,7 @@ add_columns (GtkTreeView *treeview)
 
   renderer = gtk_cell_renderer_text_new (); g_object_set (renderer, "xalign", 0.0, NULL);
   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview), -1,
-      "Col 1", renderer, "active", COLUMN_1, NULL);
+      "Col 1", renderer, "text", COLUMN_1, NULL);
 }
 
 GtkWidget *