X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/eaf0711613bea8181528d8911b30ef7976b7bb42..c2e8051452fa55db096553cbe5ae622fc363d481:/src/catalogue/views.py

diff --git a/src/catalogue/views.py b/src/catalogue/views.py
index ccd51ff68..b4ac30f86 100644
--- a/src/catalogue/views.py
+++ b/src/catalogue/views.py
@@ -457,4 +457,4 @@ def ridero_cover(request, slug):
 
 def get_isbn(request, book_format, slug):
     book = Book.objects.get(slug=slug)
-    return HttpResponse(book.extra_info.get('isbn_%s' % book_format))
+    return HttpResponse(book.get_extra_info_json().get('isbn_%s' % book_format))