diff --git a/app/controllers/student_work_controller.rb b/app/controllers/student_work_controller.rb
index 01299409..d8b572ea 100644
--- a/app/controllers/student_work_controller.rb
+++ b/app/controllers/student_work_controller.rb
@@ -87,8 +87,8 @@ class StudentWorkController < ApplicationController
 
     # 当前用户评测最大次数
     @user_evaluate_count = 0
-    if myshixun.user_id == @work.user.id
-      @user_evaluate_count = @myshixun.games.sum(:evaluate_count).to_i
+    if @myshixun.user_id == @work.user.id
+      @user_evaluate_count = @myshixun.games.pluck(:evaluate_count).sum.to_i
     end
 
     unless params[:pdf]