diff --git a/lib/tasks/schools.rake b/lib/tasks/schools.rake
index 0d2cf0899..a788d57d1 100644
--- a/lib/tasks/schools.rake
+++ b/lib/tasks/schools.rake
@@ -21,7 +21,7 @@ namespace :schools do
     # 实训报告表迁移数据
     s_report = SchoolReport.find_by(school_id: f_school)
     SchoolReport.where(school_id: merge_schools).each do |sr|
-      s_report.update_column(:shixun_evaluate_count, s_report.shixun_evaluate_count+sr.shixun_evaluate_count)
+      s_report.update_column(:shixun_evaluate_count, (s_report.shixun_evaluate_count+sr.shixun_evaluate_count))
       sr.update(shixun_evaluate_count: 0)
     end
   end