diff --git a/_toc.yml b/_toc.yml
index 53f312c49c..bc03655c04 100644
--- a/_toc.yml
+++ b/_toc.yml
@@ -22,3 +22,6 @@ parts:
 - caption: Doppler Lidar
   chapters:
    - glob: notebooks/doppler-lidar/*
+- caption: Micro Rain Radar
+  chapters:
+   - glob: notebooks/mrr/*