diff --git a/seminar/models.py b/seminar/models.py
index 08f05df0..1aaafa58 100644
--- a/seminar/models.py
+++ b/seminar/models.py
@@ -5,6 +5,7 @@ import subprocess
 import pathlib
 import tempfile
 
+from django.contrib.sites.shortcuts import get_current_site
 from django.db import models
 from django.contrib import auth
 from django.utils import timezone
@@ -642,7 +643,7 @@ class Cislo(SeminarModelBase):
 
 	def posli_cislo_mailem(self):
 		# parametry e-mailu
-		odkaz = self.verejne_url()
+		odkaz = str(get_current_site(None)) + '/' + self.verejne_url()
 
 		poslat_z_mailu = 'zadani@mam.mff.cuni.cz'
 		predmet = 'Vyšlo číslo {}'.format(self.kod())