diff --git a/korektury/views.py b/korektury/views.py
index 99f71e00..d6d126e4 100644
--- a/korektury/views.py
+++ b/korektury/views.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from django.shortcuts import render
+from django.shortcuts import get_object_or_404, render
 from django.views import generic
 from django.utils.translation import ugettext as _
 from django.conf import settings
@@ -114,7 +114,7 @@ class KorekturyView(generic.TemplateView):
 
     def get_context_data(self, **kwargs):
         context = super(KorekturyView,self).get_context_data(**kwargs)
-        pdf = KorekturovanePDF.objects.get(id=self.kwargs['pdf'])
+        pdf = get_object_or_404(KorekturovanePDF, id=self.kwargs['pdf'])
         context['pdf'] = pdf
         context['img_name'] = os.path.split(pdf.pdf.path)[1].split('.')[0]
         context['img_path'] = settings.KOREKTURY_IMG_DIR