diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index e6df161..eeb1967 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -258,6 +258,7 @@ class DuplicatedEvents(models.Model):
             e.other_versions = other
             # save them
             e.save()
+        other.representative = None
         other.save()
         # then delete the empty group
         self.delete()