diff --git a/tutorials/working_with_auxiliary_data.md b/tutorials/working_with_auxiliary_data.md
index 80d3341f03a35f42502cc6db7ec8ae6ad292b504..ef24903a4e711ef60228f3aceaf694c32882d159 100644
--- a/tutorials/working_with_auxiliary_data.md
+++ b/tutorials/working_with_auxiliary_data.md
@@ -85,4 +85,4 @@ CDL |     0.5494 |   42.1279 |   0.3018
 
 ## Other Modality classes
 
-The usage of the `GraphModality` and `ImageModality`, to deal with graph and visual auxiliary data, follows the same principles as above. The [c2pf_example](../examples/c2pf_example.py) and [mcf_example](../examples/mcf_office.py) involve the `GraphModality` class to handle item network. For the `ImageModality`, one may refer to the [vbpr_tradesy](../examples/vbpr_tradesy.py) example. The `cornac.data` module's [documentation](https://cornac.readthedocs.io/en/latest/data.html) is also a good resource to know more about the modality classes. 
\ No newline at end of file
+The usage of the `GraphModality` and `ImageModality`, to deal with graph and visual auxiliary data, follows the same principles as above. The [c2pf_example](../examples/c2pf_example.py) and [mcf_example](../examples/mcf_office.py) involve the `GraphModality` class to handle item network. For the `ImageModality`, one may refer to the [vbpr_tradesy](../examples/vbpr_tradesy.py) example. The `cornac.data` module's [documentation](https://cornac.readthedocs.io/en/stable/api_ref/data.html#module-cornac.data.modality) is also a good resource to know more about the modality classes.