diff --git a/runs/2024/pyladies-en-vienna-2024-autumn/info.yml b/runs/2024/pyladies-en-vienna-2024-autumn/info.yml
index 697529f6ef..aa2a4747c2 100644
--- a/runs/2024/pyladies-en-vienna-2024-autumn/info.yml
+++ b/runs/2024/pyladies-en-vienna-2024-autumn/info.yml
@@ -198,15 +198,15 @@ plan:
 - title: Classes
   slug: classes
   date: 2024-11-26
-  # materials:
-  #   - lesson: beginners-en/class
-  #   - lesson: beginners-en/inheritance
-  #   - title: Classes cheatsheet
-  #     url: https://github.com/ehmatthes/pcc/releases/download/v1.0.0/beginners_python_cheat_sheet_pcc_classes.pdf
-  #     type: cheatsheet
-  #   - title: Homework (PDF)
-  #     url: https://drive.google.com/file/d/1amhY9-pvtN8w6tHnOvR0tIcwOfNVx-Bl/view
-  #     type: homework
+  materials:
+    - lesson: beginners-en/class
+    - lesson: beginners-en/inheritance
+    - title: Classes cheatsheet
+      url: https://github.com/ehmatthes/pcc/releases/download/v1.0.0/beginners_python_cheat_sheet_pcc_classes.pdf
+      type: cheatsheet
+    - title: Homework (PDF)
+      url: https://drive.google.com/file/d/1amhY9-pvtN8w6tHnOvR0tIcwOfNVx-Bl/view
+      type: homework
 
 - title: Modules, exceptions, testing
   slug: testing