diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index 36eebe4f2..64531a6f4 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -24,7 +24,7 @@ module CoursesHelper
   def find_excelletn_course keywords, current_course
     # 获取tag匹配结果ID
     a_tags = []
-    Course.where("is_excellent =? and is_public =?", 1, 1).includes(:tags).each do |ec|
+    Course.where("is_excellent =? and is_public =?", 1, 1).each do |ec|
       if ec.tags.any?{|value| current_course.name.include?(value.to_s)}
         a_tags << ec.id
       end