--- src/mainwindow.c

+++ src/mainwindow.c

@@ -423,7 +423,7 @@ mainwindow_fill_trackers_tab(MainWindow

   node = benc_node_find_key(torrent, "announce");

   gtk_list_store_append(liststore, &iter);

-  gtk_list_store_set(liststore, &iter, 0, benc_node_data(node), -1);

+  gtk_list_store_set(liststore, &iter, 0, node!=NULL?benc_node_data(node):"", -1);

   node = benc_node_find_key(torrent, "announce-list");

   if(node != NULL) /* multi-tracker support */