diff --git a/db/migrate/20200112030419_migrate_3176_exercise_score.rb b/db/migrate/20200112030419_migrate_3176_exercise_score.rb
index 449a87578..e96931f79 100644
--- a/db/migrate/20200112030419_migrate_3176_exercise_score.rb
+++ b/db/migrate/20200112030419_migrate_3176_exercise_score.rb
@@ -18,7 +18,7 @@ class Migrate3176ExerciseScore < ActiveRecord::Migration[5.2]
               answer_status = 1
             end
             ex_shixun_answer_content = exercise_cha.exercise_shixun_answers.find_by(user_id:user.id,exercise_question_id:q.id)
-            if ex_shixun_answer_content.present? && !ex_shixun_answer_content.score >0  #把关卡的答案存入试卷的实训里
+            if ex_shixun_answer_content.present? && !(ex_shixun_answer_content.score >0)  #把关卡的答案存入试卷的实训里
               ex_shixun_answer_content.update_attributes!(score:exercise_cha_score.round(1),status:answer_status)
             end
             score5 += exercise_cha_score