diff --git a/aleksis/apps/chronos/templates/chronos/lesson_event_description.txt b/aleksis/apps/chronos/templates/chronos/lesson_event_description.txt
index 055eb824884250f2a229a25cbc00db49dd618afa..573c92354535f0f4a5ed029e9efab63bc71c3639 100644
--- a/aleksis/apps/chronos/templates/chronos/lesson_event_description.txt
+++ b/aleksis/apps/chronos/templates/chronos/lesson_event_description.txt
@@ -1,4 +1,4 @@
-{% load i18n %}{% trans "Groups" %}: {{ event.group_names_with_amends|default:"–" }}{% if event.subject %}
+{% load i18n %}{% trans "Groups" %}: {{ event.group_names|default:"–" }}{% if event.subject %}
 {% trans "Subject" %}: {{ event.subject_name_with_amends }}{% endif %}
 {% trans "Teachers" %}: {{ event.teacher_names_with_amends|default:"–" }}
 {% trans "Rooms" %}: {{ event.room_names_with_amends|default:"–" }}{% if event.comment %}