diff --git a/seminar/migrations/0104_hodnoceni_deadline_body.py b/seminar/migrations/0104_hodnoceni_deadline_body.py
index 95009578..515a956d 100644
--- a/seminar/migrations/0104_hodnoceni_deadline_body.py
+++ b/seminar/migrations/0104_hodnoceni_deadline_body.py
@@ -11,7 +11,7 @@ def prirad_deadliny(apps, schema_editor):
     Deadline = apps.get_model('seminar', 'Deadline')
 
     for h in Hodnoceni.objects.all():
-        if h.cislo_body.rocnik.rocnik < 26:
+        if h.cislo_body is not None and h.cislo_body.rocnik.rocnik < 26:
             # Deadline připravený v minulé migraci
             h.deadline_body = h.cislo_body.deadline_v_cisle.get()
             h.save()