diff --git a/doc/src/week34/week34.do.txt b/doc/src/week34/week34.do.txt
index 92726eb13..55af3a3b7 100644
--- a/doc/src/week34/week34.do.txt
+++ b/doc/src/week34/week34.do.txt
@@ -8,7 +8,7 @@ DATE: Week 34, August 21-25, 2021
 ===== Overview of first week =====
 
 o The sessions on Tuesdays and Wednesdays last four hours for each group (four groups in total) and will include lectures in a flipped mode (promoting active learning) and work on exercices and projects.
-o The sessions will begin with lectures, discussions, questions and answers about the material to be covered every week.
+o The sessions will begin with lectures, discussions, questions and answers about the material to be covered every week. Videos and teaching material will be announced in due time.
 o There are four groups:
   * Tuesdays 815am-12pm and 1215pm-4pm
   * Wednesdays 815am-12pm and 1215pm-4pm.