diff --git a/announcement/views.py b/announcement/views.py
index b01af7f..9649875 100644
--- a/announcement/views.py
+++ b/announcement/views.py
@@ -32,7 +32,7 @@ class AnnouncementAPIView(APIView):
         """
         公告分页json api接口
         ---
-        request_serializer: AnnouncementSerializer
+        response_serializer: AnnouncementSerializer
         """
         announcement = Announcement.objects.all().order_by("last_update_time")
         return paginate(request, announcement, AnnouncementSerializer)
diff --git a/oj/urls.py b/oj/urls.py
index 2586cb6..97ecb02 100644
--- a/oj/urls.py
+++ b/oj/urls.py
@@ -23,7 +23,7 @@ urlpatterns = [
     url(r'^api/admin/announcement/$', AnnouncementAdminAPIView.as_view(), name="announcement_admin_api"),
     url(r'^problem/(?P<problem_id>\d+)/$', "problem.views.problem_page", name="problem_page"),
 
-    url(r'^announcements/$', AnnouncementAPIView.as_view()),
+    url(r'^api/announcements/$', AnnouncementAPIView.as_view(), name="announcement_list_api"),
 
     url(r'^admin/contest/$', TemplateView.as_view(template_name="admin/contest/add_contest.html"), name="add_contest_page"),
     url(r'^problems/$', TemplateView.as_view(template_name="oj/problem/problem_list.html"), name="problem_list_page"),