diff --git a/seminar/models/tvorba.py b/seminar/models/tvorba.py
index 11af3a6a..7575a649 100644
--- a/seminar/models/tvorba.py
+++ b/seminar/models/tvorba.py
@@ -97,7 +97,7 @@ class Rocnik(SeminarModelBase):
 		return vc[-1] if vc else None
 
 	def verejne_vysledkovky_cisla(self):
-		vc = list(self.cisla.filter(deadline_v_cisle__verejna_vysledkovka=True))
+		vc = list(self.cisla.filter(deadline_v_cisle__verejna_vysledkovka=True).distinct())
 		vc.sort(key=lambda c: c.poradi)
 		return vc