diff --git a/app/services/cnmoocs_service.rb b/app/services/cnmoocs_service.rb
index e1bae88d..a30e2ef2 100644
--- a/app/services/cnmoocs_service.rb
+++ b/app/services/cnmoocs_service.rb
@@ -129,7 +129,7 @@ class CnmoocsService
    # shixun_ids = StageShixun.where(:stage_id => subject.stages).pluck(:shixun_id)
     #myshixuns = Myshixun.where(:user_id => params[:userId], shixun_id: shixun_ids).includes(:games)
     myshixun = shixun.myshixuns.where(:user_id => params[:userId]).includes(:games)
-    if myshixun
+    if myshixun.present?
       score = myshixun.total_score
       time = 0
       myshixun.games.each do |game|