diff --git a/app/controllers/discusses_controller.rb b/app/controllers/discusses_controller.rb
index 6ddf71ba4..c0deac091 100644
--- a/app/controllers/discusses_controller.rb
+++ b/app/controllers/discusses_controller.rb
@@ -7,6 +7,8 @@ class DiscussesController < ApplicationController
   def index
     page = params[:page].to_i
     offset = page * LIMIT
+    @manger = @container.has_manager?(current_user) || current_user.is_certification_teacher
+
     # 总数，分页使用
     if current_user.admin?
       @disscuss_count = Discuss.where(:dis_id => @container.id, :dis_type => @container.class.to_s, :root_id => nil).count
@@ -18,7 +20,6 @@ class DiscussesController < ApplicationController
                                  {dis_id: @container.id, dis_type: @container.class.to_s, hidden: false, user_id: current_user.id})
       @disscuss_count = disscusses.count("discusses.id")
     end
-    @manger = @container.has_manager?(current_user)
     if @manger
       @discusses = disscusses.limit(LIMIT).joins("left join games on discusses.challenge_id = games.challenge_id and discusses.user_id = games.user_id")
                        .select("discusses.*, games.identifier").includes(:user, :praise_treads).offset(offset)