diff --git a/contest/views.py b/contest/views.py
index 83a5219..de65a9b 100644
--- a/contest/views.py
+++ b/contest/views.py
@@ -288,6 +288,8 @@ class MakeContestProblemPublicAPIView(APIView):
                                hint=problem.hint, created_by=problem.created_by,
                                time_limit=problem.time_limit, memory_limit=problem.memory_limit,
                                visible=False, difficulty=-1, source=problem.contest.title)
+        problem.is_public = True
+        problem.save()
         return success_response(u"创建成功")