diff --git a/app/views/attendance_tracker/index.html.erb b/app/views/attendance_tracker/index.html.erb
index ecc54c7..0ece73c 100644
--- a/app/views/attendance_tracker/index.html.erb
+++ b/app/views/attendance_tracker/index.html.erb
@@ -30,7 +30,7 @@
               </thead>
 
               <tbody class="divide-y divide-gray-200 bg-white">
-              <% course.lectures_and_work_items.group_by { |lecture| lecture.week_number }.each do |(week_number, lectures)| %>
+              <% course.lectures.group_by { |lecture| lecture.week_number }.each do |(week_number, lectures)| %>
                 <tr class="border-t border-gray-200">
                   <th colspan="5" scope="colgroup" class="bg-gray-50 py-2 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 sm:pl-6">
                     <div class="flex flex-row justify-between">