Index: addressbook/backends/file/e-book-backend-file.c
===================================================================
--- addressbook/backends/file/e-book-backend-file.c.orig
+++ addressbook/backends/file/e-book-backend-file.c
@@ -684,6 +684,9 @@ e_book_backend_file_stop_book_view (EBoo
 	FileBackendSearchClosure *closure = get_closure (book_view);
 	gboolean need_join = FALSE;
 
+	if (!closure)
+		return;
+
 	d(printf ("stopping query\n"));
 	g_mutex_lock (closure->mutex);
 	if (!closure->stopped)