diff --git a/app/controllers/words_controller.rb b/app/controllers/words_controller.rb
index f2502e03e..1a7feae2c 100644
--- a/app/controllers/words_controller.rb
+++ b/app/controllers/words_controller.rb
@@ -236,7 +236,7 @@ class WordsController < ApplicationController
     #modify by nwb
     #添加对课程留言的支持
     referer = request.headers["Referer"]
-    obj_id = referer.match(%r(/([0-9]{1,})(/|$)))[1]
+    obj_id = referer.match(%r(/([0-9]{1,})(/|\?|$)))[1]
     if referer.match(/project/)
       obj = Project.find_by_id(obj_id)
     elsif referer.match(/course/)