diff --git a/desktop/tree.c b/desktop/tree.c
index edc1f97d0..adee7bf0d 100644
--- a/desktop/tree.c
+++ b/desktop/tree.c
@@ -181,6 +181,11 @@ struct tree {
 
 static void treeview_test_redraw_request(struct core_window *cw, struct rect r)
 {
+	struct tree *tree = cw;
+
+	tree->callbacks->redraw_request(r.x0, r.y0,
+			r.x1 - r.x0, r.y1 - r.y0,
+			tree->client_data);
 }
 
 static void treeview_test_update_size(struct core_window *cw,