diff --git a/TODO b/TODO
index 96622956..f7ba6045 100644
--- a/TODO
+++ b/TODO
@@ -110,6 +110,7 @@ Legend:
    - extend XML specs to support that
    - cross-platform building support
  - transaction stuff for database
+ - incremental build/fetch for repository index (pisi-index.xml)
  - GUI
    - pyqt UI class to interface
    - PISIMAT