diff --git a/app/controllers/exercise_controller.rb b/app/controllers/exercise_controller.rb
index 1bc160592..b1e5456c5 100644
--- a/app/controllers/exercise_controller.rb
+++ b/app/controllers/exercise_controller.rb
@@ -615,7 +615,7 @@ class ExerciseController < ApplicationController
     sheet1 = book.create_worksheet :name => "exercise"
     blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
     sheet1.row(0).default_format = blue
-    sheet1.row(0).concat([l(:excel_user_id),l(:excel_user_name),l(:excel_nickname),l(:excel_student_id),l(:excel_mail),l(:excel_f_score),l(:excel_commit_time)])
+    sheet1.row(0).concat([l(:excel_user_id),l(:excel_user_name),l(:excel_nickname),l(:excel_student_id),l(:excel_mail),l(:excel_class),l(:excel_f_score),l(:excel_commit_time)])
     count_row = 1
     items.each do |exercise|
       sheet1[count_row,0]=exercise.user.id
@@ -623,8 +623,9 @@ class ExerciseController < ApplicationController
       sheet1[count_row,2] = exercise.user.login
       sheet1[count_row,3] = exercise.user.user_extensions.student_id
       sheet1[count_row,4] = exercise.user.mail
-      sheet1[count_row,5] = exercise.score
-      sheet1[count_row,6] = format_time(exercise.created_at)
+      sheet1[count_row,5] = ""
+      sheet1[count_row,6] = exercise.score
+      sheet1[count_row,7] = format_time(exercise.created_at)
       count_row += 1
     end
     book.write xls_report