diff --git a/list-objects-filter.c b/list-objects-filter.c
index b9543545ca..dfc3f49f4f 100644
--- a/list-objects-filter.c
+++ b/list-objects-filter.c
@@ -514,6 +514,7 @@ static enum list_objects_filter_result filter_sparse(
 static void filter_sparse_free(void *filter_data)
 {
 	struct filter_sparse_data *d = filter_data;
+	clear_pattern_list(&d->pl);
 	free(d->array_frame);
 	free(d);
 }