diff --git a/board/views.py b/board/views.py
index 52a960b..face8da 100644
--- a/board/views.py
+++ b/board/views.py
@@ -133,8 +133,6 @@ class BoardView(BoardMixin, TemplateView):
 class PostCreateView(CreateView):
     model = Post
     form_class = PostForm
-    slug_field = "url"
-    slug_url_kwarg = "url"
     template_name = "board/post_create.html"
 
     def get_context_data(self, **kwargs):
@@ -195,8 +193,6 @@ class PostModifySuccessView(PermissionRequiredMixin, TemplateView):
 class ReplyCreateView(CreateView):
     model = Post
     form_class = ReplyForm
-    slug_field = "url"
-    slug_url_kwarg = "url"
     template_name = "board/reply_create.html"
     success_url = reverse_lazy("board:post_success")