diff --git a/docs/source/index.rst b/docs/source/index.rst
index b24164b..f9d41c8 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -100,7 +100,7 @@ the demo:
     roslaunch cartographer_ros demo_backpack_2d.launch bag_filename:=${HOME}/Downloads/cartographer_paper_deutsches_museum.bag
 
     # Download the 3D backpack example bag.
-    wget -P ~/Downloads https://storage.googleapis.com/cartographer-public-data/bags/backpack_3d/b3-2016-04-05-14-14-00.bag
+    wget -P ~/Downloads https://storage.googleapis.com/cartographer-public-data/bags/backpack_3d/with_intensities/b3-2016-04-05-14-14-00.bag
 
     # Launch the 3D backpack demo.
     roslaunch cartographer_ros demo_backpack_3d.launch bag_filename:=${HOME}/Downloads/b3-2016-04-05-14-14-00.bag