diff --git a/seminar/urls.py b/seminar/urls.py
index 59de212b..446d6bc7 100644
--- a/seminar/urls.py
+++ b/seminar/urls.py
@@ -36,17 +36,17 @@ urlpatterns = [
     url(r'^aesop-export/index.csv$', export.ExportIndexView.as_view(), name='seminar_export_index'),
 
     #### Stranky viditelne pouze pro orgy:
-    url(r'^cislo/(?P<rocnik>\d+).(?P<cislo>\d+)/vysledkovka.tex$', 
+    url(r'^cislo/(?P<rocnik>\d+).(?P<cislo>[0-9-]+)/vysledkovka.tex$',
         staff_member_required(views.CisloVysledkovkaView.as_view()), name='seminar_cislo_vysledkovka'),
-    url(r'^cislo/(?P<rocnik>\d+).(?P<cislo>\d+)/obalky.pdf$',
+    url(r'^cislo/(?P<rocnik>\d+).(?P<cislo>[0-9-]+)/obalky.pdf$',
         staff_member_required(views.cisloObalkyView), name='seminar_cislo_obalky'),
 
-    url(r'^cislo/(?P<rocnik>\d+).(?P<cislo>\d+)/tituly.tex$', 
+    url(r'^cislo/(?P<rocnik>\d+).(?P<cislo>[0-9-]+)/tituly.tex$',
         staff_member_required(views.TitulyView), name='seminar_cislo_titul'),
-    url(r'^stav$', 
+    url(r'^stav$',
         staff_member_required(views.StavDatabazeView), name='stav_databaze'),
-    url(r'^cislo/(?P<rocnik>\d+).(?P<cislo>\d+)/resitel_uloha.html$', 
-        staff_member_required(views.resitelUlohaView),name='seminar_cislo_resitel_uloha'),
-    url(r'^soustredeni/(?P<soustredeni>\d+)/obalky.pdf', 
-        staff_member_required(views.soustredeniObalkyView),name='seminar_soustredeni_obalky'),
+    url(r'^cislo/(?P<rocnik>\d+).(?P<cislo>[0-9-]+)/resitel_uloha.html$',
+        staff_member_required(views.resitelUlohaView), name='seminar_cislo_resitel_uloha'),
+    url(r'^soustredeni/(?P<soustredeni>\d+)/obalky.pdf',
+        staff_member_required(views.soustredeniObalkyView), name='seminar_soustredeni_obalky'),
 ]