diff --git a/source/libublsettings-gtk3.c b/source/libublsettings-gtk3.c
index 96a00bf..525a907 100644
--- a/source/libublsettings-gtk3.c
+++ b/source/libublsettings-gtk3.c
@@ -713,6 +713,7 @@ int yon_ubl_status_box_spawn_infinite(GtkContainer *container, char *status_id,
                 return 0;
             }
             free(yon_status_thread_id);
+            yon_status_thread_id=NULL;
             GList *list = gtk_container_get_children(container);
             for (int i=0;i<g_list_length(list);i++){
                 gtk_widget_destroy((GtkWidget*)g_list_nth_data(list,i));