gtk_combo_box_get_active_iter (cb, &iter);
gtk_tree_model_get (model, &iter, PSPPIRE_SPREADSHEET_MODEL_COL_RANGE, &range, -1);
- gtk_entry_set_text (GTK_ENTRY (range_entry), range);
+ gtk_entry_set_text (GTK_ENTRY (range_entry), range ? range : "");
g_free (range);
}