diff --git a/teaching/machine-learning-ws23/machine-learning-ws23.html b/teaching/machine-learning-ws23/machine-learning-ws23.html
index bc04635b..bc3bc65d 100644
--- a/teaching/machine-learning-ws23/machine-learning-ws23.html
+++ b/teaching/machine-learning-ws23/machine-learning-ws23.html
@@ -311,7 +311,7 @@ <h3 id="logbook">Logbook</h3>
 		      <li>21.11.2023: Until the end of <i>Bayesian Learning &gt; Bayes Classifier</i></li>
 		      <li>28.11.2023: Until slide ML:VI-52 in <i>Decision Trees &gt; Impurity Functions</i></li>
 		      <li>05.12.2023: Until the end of <i>Decision Trees &gt; Decision Trees Pruning</i></li>
-		      <li>12.12.2023: <a href="https://colab.research.google.com/drive/1_vFZMWu-0YkG7tzHc-GMrOPLxY71D4BJ?usp=sharing">Christmas exercise</a></i></li>
+		      <li>12.12.2023: <i>Christmas exercise</i> [<a href="https://colab.research.google.com/drive/1_vFZMWu-0YkG7tzHc-GMrOPLxY71D4BJ?usp=sharing">notebook (Colab)</a>] [<a href="https://youtu.be/xFv9QDfmzKY">recording</a>] </li>
 			    
                     </ul>
             </p>