diff --git a/rest_framework/mixins.py b/rest_framework/mixins.py index 1edcfa5c9..a49d7a2f2 100644 --- a/rest_framework/mixins.py +++ b/rest_framework/mixins.py @@ -106,6 +106,10 @@ class UpdateModelMixin(object): # pk and/or slug attributes are implicit in the URL. pk = self.kwargs.get(self.pk_url_kwarg, None) if pk: + try: + pk = int(pk) + except ValueError: + pass setattr(obj, 'pk', pk) slug = self.kwargs.get(self.slug_url_kwarg, None)