diff --git a/contest/decorators.py b/contest/decorators.py
index 663f8fb..dca63bf 100644
--- a/contest/decorators.py
+++ b/contest/decorators.py
@@ -32,7 +32,7 @@ def check_user_contest_permission(func):
             if request.is_ajax():
                 return error_response(u"请先登录")
             else:
-                return HttpResponseRedirect("/login/?__from=" + urllib.quote(request.build_absolute_uri()))
+                return HttpResponseRedirect("/login/?__from=" + urllib.quote(request.path))
 
         # kwargs 就包含了 url 里面的参数
         if "contest_id" in kwargs: