diff --git a/_Sidebar.md b/_Sidebar.md
index 0e28397..a8e9323 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -151,6 +151,7 @@
   * [make_icao24_db.py](Make-icao24-db)
   * [world_map.bin](World-map-generation)
   * [converter](Splash-and-other-images)
+  * [Bitmap reverse decode](Bitmap-reverse-decode)
 * Research
   * [Dissecting the Temperature Logger](Dissecting-the-Temperature-logger)
   * [Differences between H1 and H2](Differences-Between-H1-and-H2-models)