diff --git a/deep-learning-intro-for-hep/_toc.yml b/deep-learning-intro-for-hep/_toc.yml
index bfe9626..7a7e563 100644
--- a/deep-learning-intro-for-hep/_toc.yml
+++ b/deep-learning-intro-for-hep/_toc.yml
@@ -28,5 +28,5 @@ chapters:
 - file: 22-beyond-supervised
 - file: 23-autoencoders
 - file: 24-convolutional
-- file: 25-deepsets-and-graphs
+- file: 25-ragged-data-and-graphs
 - file: xx-conclusion