diff --git a/app/helpers/student_works_helper.rb b/app/helpers/student_works_helper.rb
index 9a91dfbf2..40759c9e0 100644
--- a/app/helpers/student_works_helper.rb
+++ b/app/helpers/student_works_helper.rb
@@ -82,7 +82,7 @@ module StudentWorksHelper
     # 最大效率值
     # max_efficiency = objects.map{|o| o[:efficiency]}.max
     results =
-        objects.map_with_index do |object, index|
+        objects.each_with_index.map do |object, index|
           y_score = (object[:evaluate_count] == 0 ? 0 : (object[:user_total_score] / object[:evaluate_count].to_f))
           eff_score = format("%.2f", y_score).to_f
           # 效率值